index.ts

1import {2  detectCardForm,3  detectLoginFields,4  findOTPDigitBoxGroup,5  findOtpSignalingGroup,6  getDeepActiveInput,7  getPageDomain,8  isAnyCredentialForm,9  isEmailFirstForm,10  isLoginForm,11  isSignupForm,12  isTOTPField,13  isVisible,14} from "./detect";15import {16  type CardSelectorEntry,17  injectFieldIcon,18  type SelectorEntry,19  showAutofillSelector,20  showCardSelector,21  showPasskeyAvailable,22  showPasskeyProGate,23  showPasskeyRegistrationOffer,24  showRememberSiteToast,25  showTotpCopyToast,26  showTOTPSelector,27} from "./inject";28import { detectBrowser } from "../shared/browser";29import { FIREFOX_USE_CONTENT_SCRIPT_PROXY } from "../shared/passkey-flags";30import { fillAllowed, fillCardForm, fillFields, fillOTPDigitBoxes, fillTOTPCode, setNativeValue } from "./fill";31import { resolveAutofillInteractionTargets } from "./interaction";32import { setupSaveDetection } from "./save";33import { contentMLDetector } from "./content-ml-detector";34import { detectPasswordPolicy } from "./policy";35import type { FieldPrediction } from "../shared/ml";36import type { SavedIdentity, VaultEntry } from "../shared/types";3738// WeakMap (not WeakSet) — we keep the per-input cleanup callback as the value39// so we can tear down listeners if we ever need to re-process the same field.40// When the input is GC'd (SPA nav, React re-render), the map entry goes with41// it and we can re-inject without leaking the old handler.42const processedInputs = new WeakMap<HTMLInputElement, () => void>();43const AUTOFILL_FIELD_TYPES = new Set(["password", "username", "email"]);4445let currentDismiss: (() => void) | null = null;46// Field whose selector is currently open — used to avoid dismiss+reopen flicker47let currentAnchorField: HTMLInputElement | null = null;48// Prevents two concurrent handleFieldInteraction calls for the same field49const pendingInteractions = new WeakSet<HTMLInputElement>();50// Tracks the last field the user explicitly dismissed (Escape / click-outside / Tab).51// Suppresses spurious reopens until focus moves to a different field. Layer 152// of the dismissal model — see Projects.md §4.12.53let lastDismissedField: HTMLInputElement | null = null;5455// ── Dismissal lock (Layer 2) ────────────────────────────────────────56// After any user-initiated dismiss, briefly block ALL reopens regardless of57// which field is focused. Catches the case where a page rapidly moves focus58// between fields after Escape — without this, focus moving to a SECOND field59// in <100ms would re-trigger the popup before the user finished dismissing.60const DISMISS_LOCK_MS = 800;61let dismissLock = false;62let dismissLockTimer: ReturnType<typeof setTimeout> | null = null;63// Set when the inline popup was summoned specifically for a passkey-unlock64// flow. The VAULT_UNLOCKED handler checks this to skip re-triggering autofill65// (the passkey toast handles the next step instead).66let passkeySummonActive = false;67// Set while the passkey approval toast is visible. Prevents handleFieldInteraction68// from opening the autofill selector alongside it. Cleared by a window message69// posted by inject.tsx when the toast closes (and by DISMISS_PASSKEY_TOAST).70let passkeyToastActive = false;71function startDismissLock(): void {72  dismissLock = true;73  if (dismissLockTimer) clearTimeout(dismissLockTimer);74  dismissLockTimer = setTimeout(() => { dismissLock = false; }, DISMISS_LOCK_MS);75}76function canOpen(): boolean { return !dismissLock; }7778// ── Fill-success lock ───────────────────────────────────────────────79// After Peach autofills a form, the popup must NOT reappear on the filled80// fields, on the submit button (some sites refocus it briefly), or on any81// field in that form — even when host-page DOM mutations or the form's own82// validation flow refocus an input. Implemented as a WeakSet of forms plus83// a page-level timestamp:84//   - filledForms: every form Peach has filled this page session. Survives85//     until the form leaves the DOM (WeakSet GC).86//   - pageFilledAt: timestamp of last fill. Used as a 3s belt-and-suspenders87//     window for fields that aren't inside a <form> element (some SPAs).88// SPA navigation resets pageFilledAt via the urlObserver below; filledForms89// self-empties as old form elements get GC'd.90const filledForms = new WeakSet<HTMLFormElement>();91let pageFilledAt: number | null = null;92const PAGE_FILL_GRACE_MS = 3000;9394function recordFillSuccess(...fields: (HTMLInputElement | null | undefined)[]): void {95  for (const f of fields) {96    if (!f) continue;97    const form = f.closest("form");98    if (form) filledForms.add(form);99  }100  pageFilledAt = Date.now();101}102103export /* @testable */ function wasAlreadyFilled(field: HTMLInputElement): boolean {104  const form = field.closest("form");105  if (form && filledForms.has(form)) return true;106  if (pageFilledAt !== null && Date.now() - pageFilledAt < PAGE_FILL_GRACE_MS) return true;107  return false;108}109110function clearFillStateForExplicitSummon(field: HTMLInputElement): void {111  const form = field.closest("form");112  if (form) filledForms.delete(form);113  pageFilledAt = null;114}115116// Some sites briefly focus the submit button when the user clicks it (visual117// feedback, blur/focus dance for validation animations). Catch those at the118// focusin layer so we don't re-trigger handleFieldInteraction for an event119// target that was never going to be a credential field anyway.120function isSubmitButton(el: EventTarget | null): boolean {121  if (!(el instanceof HTMLElement)) return false;122  if (el instanceof HTMLButtonElement && el.type !== "button") return true;123  if (el instanceof HTMLInputElement && el.type === "submit") return true;124  if (el.getAttribute("type") === "submit") return true;125  const text = (el.textContent?.trim() ?? el.getAttribute("value") ?? "").toLowerCase();126  if (!text || text.length > 24) return false;127  return /^(submit|sign[ -]?in|log[ -]?in|continue|next|go)$/i.test(text);128}129130function debounce<T extends (...args: unknown[]) => void>(131  fn: T,132  ms: number133): (...args: Parameters<T>) => void {134  let timer: ReturnType<typeof setTimeout>;135  return (...args: Parameters<T>) => {136    clearTimeout(timer);137    timer = setTimeout(() => fn(...args), ms);138  };139}140141function showToast(message: string): void {142  const toast = document.createElement("div");143  toast.style.cssText = `144    position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);145    background: #131109; color: #F0E8D8; padding: 8px 16px;146    border-radius: 8px; font-family: 'IBM Plex Mono', monospace;147    font-size: 11px; z-index: 2147483647; opacity: 0;148    transition: opacity 200ms ease;149    border: 1px solid rgba(240,232,216,0.07);150    pointer-events: none;151  `;152  toast.textContent = message;153  document.body.appendChild(toast);154  requestAnimationFrame(() => { toast.style.opacity = "1"; });155  setTimeout(() => {156    toast.style.opacity = "0";157    setTimeout(() => toast.remove(), 200);158  }, 2000);159}160161function showSearchPalette(capability?: string): void {162  const host = document.createElement("div");163  host.style.cssText = "position:fixed;top:80px;left:50%;transform:translateX(-50%);z-index:2147483647;width:340px;";164  document.body.appendChild(host);165  const shadow = host.attachShadow({ mode: "closed" });166167  const style = document.createElement("style");168  style.textContent = `169    .p{background:#131109;border:1px solid rgba(240,232,216,.12);border-radius:12px;170      font-family:'IBM Plex Mono',monospace;font-size:12px;color:#F0E8D8;171      box-shadow:0 8px 24px rgba(0,0,0,.5);overflow:hidden}172    .h{padding:10px 12px 8px;border-bottom:1px solid rgba(240,232,216,.08);173      font-size:11px;color:rgba(240,232,216,.5);display:flex;justify-content:space-between;align-items:center}174    .x{background:none;border:none;color:rgba(240,232,216,.4);cursor:pointer;font-size:14px;padding:0;line-height:1}175    .s{padding:8px 12px}176    .s input{width:100%;box-sizing:border-box;background:rgba(240,232,216,.06);177      border:1px solid rgba(240,232,216,.12);border-radius:6px;color:#F0E8D8;178      padding:6px 8px;font-family:inherit;font-size:12px;outline:none}179    .l{max-height:220px;overflow-y:auto}180    .e{padding:8px 12px;cursor:pointer;display:flex;flex-direction:column;gap:2px}181    .e:hover{background:rgba(240,232,216,.06)}182    .et{font-size:12px}183    .eu{font-size:10px;color:rgba(240,232,216,.45)}184    .em{padding:12px;color:rgba(240,232,216,.4);text-align:center}185  `;186187  let allEntries: SelectorEntry[] = [];188  let query = "";189190  const panel = document.createElement("div");191  panel.className = "p";192193  const hdr = document.createElement("div");194  hdr.className = "h";195  const hdrText = document.createElement("span");196  hdrText.textContent = "No form detected — search your vault";197  const closeBtn = document.createElement("button");198  closeBtn.className = "x";199  closeBtn.textContent = "✕";200  hdr.appendChild(hdrText);201  hdr.appendChild(closeBtn);202203  const searchWrap = document.createElement("div");204  searchWrap.className = "s";205  const searchInput = document.createElement("input");206  searchInput.placeholder = "search...";207  searchWrap.appendChild(searchInput);208209  const list = document.createElement("div");210  list.className = "l";211212  panel.appendChild(hdr);213  panel.appendChild(searchWrap);214  panel.appendChild(list);215  shadow.appendChild(style);216  shadow.appendChild(panel);217218  function close() { host.remove(); }219220  closeBtn.onclick = close;221222  function onKeyDown(e: KeyboardEvent) {223    if (e.key === "Escape") { close(); document.removeEventListener("keydown", onKeyDown, true); }224  }225  document.addEventListener("keydown", onKeyDown, true);226227  function render() {228    const q = query.toLowerCase();229    const filtered = q230      ? allEntries.filter(e => e.title.toLowerCase().includes(q) || (e.username ?? "").toLowerCase().includes(q))231      : allEntries;232    list.innerHTML = "";233    if (filtered.length === 0) {234      const em = document.createElement("div");235      em.className = "em";236      em.textContent = query ? "no matches" : "vault is empty";237      list.appendChild(em);238      return;239    }240    for (const entry of filtered.slice(0, 20)) {241      const row = document.createElement("div");242      row.className = "e";243      const title = document.createElement("div");244      title.className = "et";245      title.textContent = entry.title;246      row.appendChild(title);247      if (entry.username) {248        const user = document.createElement("div");249        user.className = "eu";250        user.textContent = entry.username;251        row.appendChild(user);252      }253      row.onclick = async () => {254        // MV-1: vault-wide search list is a cross-domain summon — the user255        // explicitly picked this entry to fill on this page.256        const resp = await chrome.runtime.sendMessage({ type: "GET_ENTRY_FOR_FILL", payload: { id: entry.id, capability } });257        const r = resp as { ok: boolean; data?: { password?: string } };258        if (r.ok && r.data?.password) {259          let alreadyWritten = false;260          try {261            await navigator.clipboard.writeText(r.data.password);262            alreadyWritten = true;263          } catch (err) {264            console.warn("[Peach] clipboard write denied:", err);265          }266          const copyResp = await chrome.runtime.sendMessage({267            type: "COPY",268            payload: { text: r.data.password, label: "Password", alreadyWritten },269          }) as { ok?: boolean } | undefined;270          if (alreadyWritten || copyResp?.ok) {271            showToast("Password copied");272          } else {273            showToast("Could not copy password — clipboard blocked");274          }275        } else {276          showToast("Could not copy password");277        }278        close();279        document.removeEventListener("keydown", onKeyDown, true);280      };281      list.appendChild(row);282    }283  }284285  searchInput.oninput = () => { query = searchInput.value; render(); };286287  // MV-2: the summon palette is an explicit user gesture (keyboard shortcut /288  // toolbar icon), so it may load the vault-wide inventory.289  fetchAutofillEntries(getPageDomain(), true, true).then(result => {290    if (result.locked) { showToast("Vault is locked — open Peach to unlock"); close(); return; }291    allEntries = result.entries;292    render();293    searchInput.focus();294  });295}296297function findTOTPField(root: Document | Element = document): HTMLInputElement | null {298  const inputs = root.querySelectorAll<HTMLInputElement>("input");299  for (const input of inputs) {300    if (isTOTPField(input)) return input;301  }302  return null;303}304305function findSameLoginTOTPField(passwordEl: HTMLInputElement): HTMLInputElement | null {306  const form = passwordEl.closest("form");307  return findTOTPField(form ?? document);308}309310311async function handleAutofill(312  _field: HTMLInputElement,313  usernameEl: HTMLInputElement | null,314  passwordEl: HTMLInputElement | null,315  entry: VaultEntry,316  emailEl?: HTMLInputElement | null317): Promise<{ filledTOTPField: HTMLInputElement | null; gatePassed: boolean }> {318  if (!entry.username && !entry.password && !entry.email) return { filledTOTPField: null, gatePassed: false };319  const pageDomain = getPageDomain();320  const form = (passwordEl ?? usernameEl)?.closest("form") as HTMLFormElement | null ?? null;321  // Fill the email field with entry.email if set; fall back to entry.username when322  // it looks like an email address (sites that store email-as-username and have a323  // separate email field on signup forms).324  const emailValue = entry.email ?? (entry.username?.includes("@") ? entry.username : "");325  const gatePassed = fillFields(usernameEl, passwordEl, entry.username ?? "", entry.password ?? "", form, pageDomain, emailEl, emailValue);326  let filledTOTPField: HTMLInputElement | null = null;327328  if (entry.canary && gatePassed) {329    chrome.runtime.sendMessage({330      type: "FIRE_CANARY_PING",331      payload: {332        webhookUrl: entry.canary.webhookUrl,333        entryTitle: entry.title,334        trigger: "autofilled",335      },336    }).catch(() => {});337    chrome.runtime.sendMessage({338      type: "UPDATE_ENTRY",339      payload: {340        id: entry.id,341        patch: {342          canary: {343            ...entry.canary,344            lastPinged: Date.now(),345            pingCount: (entry.canary.pingCount ?? 0) + 1,346          },347        },348      },349    }).catch(() => {});350  }351352  // The background sends a freshly-generated 6-digit code (totpCode), never the353  // base32 seed (SEV-3-C). Fill the code straight in.354  const totpCode = (entry as { totpCode?: string }).totpCode;355  if (totpCode && gatePassed) {356    const code = totpCode;357    const totpField = passwordEl ? findSameLoginTOTPField(passwordEl) : null;358    if (fillTOTPCode(totpField, code, form, pageDomain)) {359      filledTOTPField = totpField;360    }361    let alreadyWritten = false;362    try {363      await navigator.clipboard.writeText(code);364      alreadyWritten = true;365    } catch (err) {366      console.warn("[Peach] clipboard write denied:", err);367    }368    const response = await chrome.runtime.sendMessage({369      type: "COPY",370      payload: { text: code, label: "TOTP", alreadyWritten },371    });372    const res = response as { ok?: boolean; clearSeconds?: number };373    if (filledTOTPField) {374      showToast("2FA code filled");375    } else if (alreadyWritten || res.ok) {376      // Don't render the live code into the toast — the page can read it from the377      // DOM and consume the one-time code (audit LOW). The code is already on the378      // clipboard; the toast confirms the copy and shows how long until the379      // clipboard self-clears (Addendum 2). 30 mirrors DEFAULT_CLEAR_SECONDS.380      showTotpCopyToast(res.clearSeconds ?? 30);381    } else {382      showToast("Could not copy TOTP — clipboard blocked");383    }384  }385386  return { filledTOTPField, gatePassed };387}388389async function fetchAutofillEntries(390  domain: string,391  includeAll = false,392  _userGesture = false,393  capability?: string394): Promise<{ entries: SelectorEntry[]; locked: boolean }> {395  const response = await chrome.runtime.sendMessage({396    type: "AUTOFILL_QUERY",397    payload: { domain, includeAll, capability },398  });399  const res = response as { ok: boolean; data?: SelectorEntry[]; error?: string };400  if (!res.ok && res.error === "vault_locked") {401    return { entries: [], locked: true };402  }403  return { entries: res.data ?? [], locked: false };404}405406async function fetchTOTPEntries(407  domain: string408): Promise<{ entries: SelectorEntry[]; locked: boolean }> {409  const response = await chrome.runtime.sendMessage({410    type: "AUTOFILL_QUERY",411    payload: { domain, kind: "totp" },412  });413  const res = response as { ok: boolean; data?: SelectorEntry[]; error?: string };414  if (!res.ok && res.error === "vault_locked") {415    return { entries: [], locked: true };416  }417  return { entries: res.data ?? [], locked: false };418}419420421function resolveAutofillFieldType(422  el: HTMLInputElement,423  predictedType?: FieldPrediction["type"] | null424): "password" | "username" | "email" | null {425  if (426    predictedType === "password" ||427    predictedType === "username" ||428    predictedType === "email"429  ) {430    return predictedType;431  }432433  const detected = detectLoginFields().find((field) => field.el === el)?.type;434  if (detected && AUTOFILL_FIELD_TYPES.has(detected)) {435    return detected;436  }437438  const htmlType = el.type.toLowerCase();439  if (htmlType === "password") return "password";440  if (htmlType === "email") return "email";441  return null;442}443444async function openAutofillSelector(445  anchorField: HTMLInputElement,446  usernameEl: HTMLInputElement | null,447  passwordEl: HTMLInputElement | null,448  domainEntries: SelectorEntry[],449  loadSearchableEntries: () => Promise<SelectorEntry[]>,450  domain: string,451  identityKind: "email" | "username",452  emailEl?: HTMLInputElement | null453): Promise<void> {454  // No saved entries for this site → signup/new-account mode.455  // Fetch vault identities for the identity-first surface and locate456  // the confirm-password field so "Copy & fill" can populate it too.457  const isSignup = domainEntries.length === 0;458  let savedIdentities: SavedIdentity[] | undefined;459  let confirmEl: HTMLInputElement | null = null;460  if (isSignup) {461    try {462      const idResp = await chrome.runtime.sendMessage({ type: "GET_IDENTITIES" }).catch(() => null) as463        { ok: boolean; data?: SavedIdentity[] } | null;464      if (idResp?.ok && Array.isArray(idResp.data)) savedIdentities = idResp.data;465    } catch { /* silent fallback */ }466467    const form = (passwordEl ?? usernameEl)?.closest("form") ?? document.body;468    const allPwInputs = Array.from(form.querySelectorAll<HTMLInputElement>("input[type='password']"));469    confirmEl = allPwInputs.find(470      (el) => el !== passwordEl && /confirm|repeat|verify/i.test(el.name + el.id + el.placeholder)471    ) ?? (allPwInputs.length >= 2 ? allPwInputs.find((el) => el !== passwordEl) ?? null : null);472  }473474  currentDismiss?.();475  currentAnchorField = anchorField;476  currentDismiss = showAutofillSelector(477    anchorField,478    domainEntries,479    async (id: string) => {480      currentDismiss = null;481      currentAnchorField = null;482      const entryResponse = await chrome.runtime.sendMessage({483        type: "GET_ENTRY_FOR_FILL",484        payload: { id },485      });486       const entry = (entryResponse as { ok: boolean; data?: VaultEntry }).data;487       if (entry) {488         const { filledTOTPField, gatePassed } = await handleAutofill(anchorField, usernameEl, passwordEl, entry, emailEl);489         if (gatePassed) recordFillSuccess(anchorField, usernameEl, passwordEl, filledTOTPField);490        // Offer to remember the current site for this entry only if none of491        // its known domains (primary + additional) match — otherwise the492        // user already mapped it and the prompt would be noise.493        const pageDomain = location.hostname.replace(/^www\./, "");494        const entryDomains = new Set<string>();495        for (const u of [entry.url, ...(entry.additionalUrls ?? [])]) {496          try {497            if (u) entryDomains.add(new URL(u).hostname.replace(/^www\./, ""));498          } catch { /* ignore unparseable */ }499        }500        if (pageDomain && entryDomains.size > 0 && !entryDomains.has(pageDomain)) {501          showRememberSiteToast(pageDomain, entry.id);502        }503      }504    },505    {506      domain,507      loadSearchableEntries,508      isSignup,509      identityKind,510      hasEmailField: !!emailEl,511      savedIdentities,512      onFillFields: (username, password, email) => {513        const form = (passwordEl ?? usernameEl)?.closest("form") as HTMLFormElement | null ?? null;514        if (!fillFields(usernameEl, passwordEl, username, password, form, getPageDomain(), emailEl, email)) return;515        if (password && confirmEl) setNativeValue(confirmEl, password);516        recordFillSuccess(anchorField, usernameEl, passwordEl);517      },518      onDismiss: () => { lastDismissedField = anchorField; startDismissLock(); },519    }520  );521}522523async function openTOTPSelector(anchorField: HTMLInputElement, otpDigitBoxes?: HTMLInputElement[]): Promise<void> {524  if (!canOpen()) return;525  if (currentDismiss && currentAnchorField === anchorField) return;526  if (anchorField !== lastDismissedField) lastDismissedField = null;527  if (anchorField === lastDismissedField) return;528  if (wasAlreadyFilled(anchorField)) return;529530  const domain = getPageDomain();531  const result = await fetchTOTPEntries(domain);532533  if (result.locked) {534    currentDismiss?.();535    currentAnchorField = anchorField;536    currentDismiss = showAutofillSelector(537      anchorField,538      [],539      () => {},540      {541        domain,542        locked: true,543        onUnlocked: () => void openTOTPSelector(anchorField),544        onDismiss: () => { lastDismissedField = anchorField; startDismissLock(); },545      }546    );547    return;548  }549550  if (result.entries.length === 0) {551    lastDismissedField = anchorField;552    startDismissLock();553    showToast("No 2FA entries for this site — add a code in Peach first");554    return;555  }556557  currentDismiss?.();558  currentAnchorField = anchorField;559  currentDismiss = showTOTPSelector(560    anchorField,561    result.entries,562    async (id: string) => {563      try {564        const entryResponse = await chrome.runtime.sendMessage({565          type: "GET_ENTRY_FOR_FILL",566          payload: { id },567        }).catch(() => null) as { ok: boolean; data?: VaultEntry } | null;568        const entry = entryResponse?.ok ? entryResponse.data : undefined;569        const code = (entry as { totpCode?: string } | undefined)?.totpCode;570        if (!code) return;571        if (!fillAllowed(anchorField.closest("form"), getPageDomain())) return;572        if (otpDigitBoxes && otpDigitBoxes.length > 1) {573          fillOTPDigitBoxes(otpDigitBoxes, code);574        } else {575          setNativeValue(anchorField, code);576        }577        recordFillSuccess(anchorField);578        showToast("2FA code filled");579      } finally {580        currentDismiss = null;581        currentAnchorField = null;582      }583    },584    {585      domain,586      onDismiss: () => {587        lastDismissedField = anchorField;588        startDismissLock();589        currentDismiss = null;590        currentAnchorField = null;591      },592    }593  );594}595596597export /* @testable */ async function handleFieldInteraction(598  anchorField?: HTMLInputElement | null,599  explicitSummon = false,600  capability?: string601): Promise<void> {602  const field = anchorField ?? getDeepActiveInput();603  if (!field) return;604  if (!isVisible(field)) return;605606  // Passkey toast is visible — don't open the credential selector alongside it.607  if (passkeyToastActive) return;608609  // Layer 2: post-dismiss global lock. Catches rapid focus moves between610  // fields immediately after Escape/click-outside.611  if (!canOpen()) return;612613  // If a selector is already open for this exact field, don't flicker it.614  if (currentDismiss && currentAnchorField === field) return;615616  // If focus moved to a different field, the previous per-field dismiss lock617  // no longer applies.618  if (field !== lastDismissedField) lastDismissedField = null;619  // Layer 1: the user explicitly dismissed this field's selector — don't620  // reopen it until focus has genuinely moved away and come back.621  if (field === lastDismissedField) return;622623  // Fill-success lock: Peach already filled this form (or fired a fill624  // anywhere on the page within the grace window). Sites often refocus an625  // input on submit click, on validation, or on a transition to a success626  // state — none of those should re-open the popup.627  if (wasAlreadyFilled(field)) return;628629  // Prevent two concurrent calls for the same field (e.g. focusin + icon click630  // firing simultaneously — the second call would dismiss the first's selector).631  if (pendingInteractions.has(field)) return;632  pendingInteractions.add(field);633634  try {635    // Multi-digit OTP entry: a group of digit boxes opens one selector anchored636    // on the first box and fills every box at once — never one icon per box.637    // findOTPDigitBoxGroup covers maxlength=1 boxes; findOtpSignalingGroup638    // covers boxes that carry OTP signaling (autocomplete=one-time-code,639    // name/id/label matches otp/totp/2fa) but lack maxlength="1".640    const otpGroup = findOTPDigitBoxGroup(field) ?? findOtpSignalingGroup(field);641    if (otpGroup) {642      await openTOTPSelector(otpGroup[0]!, otpGroup);643      return;644    }645646    if (isTOTPField(field)) {647      const formFields = detectLoginFields();648      if (!isLoginForm(formFields) && !isSignupForm(formFields)) {649        await openTOTPSelector(field);650        return;651      }652    }653654    const fieldType = field.type.toLowerCase();655656    const mlPromise = contentMLDetector.predictBatch([field]).then((preds) => {657      return preds[0] ?? null;658    });659660    const mlPrediction = await new Promise<FieldPrediction | null>((resolve) => {661      const timeout = setTimeout(() => resolve(null), 150);662      mlPromise.then((pred) => {663        clearTimeout(timeout);664        resolve(pred);665      });666    });667668    if (passkeyToastActive) return;669670    if (!explicitSummon && fieldType !== "password" && mlPrediction && mlPrediction.type !== "username" && mlPrediction.type !== "email") {671      return;672    }673674    const autofillFieldType = resolveAutofillFieldType(field, mlPrediction?.type);675    if (autofillFieldType) {676      reattachListeners(field, autofillFieldType);677    }678679    const fields = detectLoginFields();680    const targets = resolveAutofillInteractionTargets(field, fields, explicitSummon);681    if (!targets.shouldOpen) {682      return;683    }684685    const domain = getPageDomain();686    const firstResult = await fetchAutofillEntries(domain);687    if (passkeyToastActive) return;688689    // Vault is locked — show an inline unlock prompt.690    // Re-triggering after unlock is handled by the VAULT_UNLOCKED message so691    // there is no double-trigger race between onUnlocked and the broadcast.692    if (firstResult.locked) {693      currentDismiss?.();694      currentAnchorField = field;695      currentDismiss = showAutofillSelector(696        field,697        [],698        () => {},699        { domain, locked: true, onDismiss: () => { lastDismissedField = field; startDismissLock(); } }700      );701      return;702    }703704    const entries = firstResult.entries;705    // MV-2: the vault-wide list is NOT fetched here. It is loaded lazily,706    // only when the user activates the search affordance inside the inline707    // popup (an explicit gesture), via the thunk below. Passive form focus708    // never ships the full account inventory into the page's content-script709    // world — and never hands out the entry ids that made MV-1 a full-vault710    // primitive.711    const loadSearchableEntries = async (): Promise<SelectorEntry[]> =>712      (await fetchAutofillEntries(domain, true, true, capability)).entries;713714    if (passkeyToastActive) return;715716    const pwField = fields.find((f) => f.type === "password");717    // For email-first flows there is no password field on this step — that is expected.718    if (!explicitSummon && !pwField && !isEmailFirstForm(fields)) return;719    const usernameEl = targets.usernameEl;720    const passwordEl = targets.passwordEl;721    const emailEl = targets.emailEl;722723    await openAutofillSelector(724      field,725      usernameEl,726      passwordEl,727      entries,728      loadSearchableEntries,729      domain,730      autofillFieldType === "email" ? "email" : "username",731      emailEl,732    );733  } finally {734    pendingInteractions.delete(field);735  }736}737738async function onFocusIn(e: Event): Promise<void> {739  // Submit-button focus: catch the brief refocus some sites do when the740  // user clicks the login/submit button. Without this guard, that focus741  // event reaches handleFieldInteraction → getDeepActiveInput, and on742  // pages where the button is also a labelled <input> we briefly attempt743  // to open the popup over the very button the user just clicked.744  if (isSubmitButton(e.target)) return;745  await handleFieldInteraction();746}747748function reattachListeners(749  el: HTMLInputElement,750  detectedType?: "password" | "username" | "email",751  contextFields?: ReturnType<typeof detectLoginFields>752): void {753  if (processedInputs.has(el)) return;754  if (!resolveAutofillFieldType(el, detectedType)) return;755  // Only inject icon when a credential form is present on the page756  const fields = contextFields ?? detectLoginFields();757  if (!isAnyCredentialForm(fields)) return;758759  const cleanup = injectFieldIcon(el, () => {760    currentDismiss?.();761    currentDismiss = null;762    lastDismissedField = null; // icon click is an explicit user open — clear per-field lock763    dismissLock = false; // ...and the global lock764    if (dismissLockTimer) { clearTimeout(dismissLockTimer); dismissLockTimer = null; }765    clearFillStateForExplicitSummon(el);766    el.focus({ preventScroll: true });767    void handleFieldInteraction(el, true);768  });769  processedInputs.set(el, cleanup);770}771772const debouncedReattach = debounce(() => {773  const allFields = detectLoginFields();774  if (!isAnyCredentialForm(allFields)) return;775  const newFields = allFields.filter(776    (f) => AUTOFILL_FIELD_TYPES.has(f.type) && !processedInputs.has(f.el)777  );778  for (const f of newFields) {779    reattachListeners(f.el, f.type, allFields);780  }781  // 200ms debounce — below this, Peach and the host page's reactive layer782  // fight over the same layout properties every frame on React/Vue/Angular783  // login forms (v1.4.14 regression, Projects.md §4.7). Do not lower.784}, 200);785786function setupMutationObserver(): void {787  const observer = new MutationObserver(debouncedReattach);788  observer.observe(document.body, {789    childList: true,790    subtree: true,791    attributes: true,792    attributeFilter: ["type", "autocomplete", "name", "id", "placeholder", "hidden"],793  });794}795796export /* @testable */ function initialScan(aggressionLevel = 0, isFinalPass = false) {797  const allFields = detectLoginFields();798  const hasKnownForm = isAnyCredentialForm(allFields);799800  if (aggressionLevel === 0 && !hasKnownForm) return;801802  const newFields = allFields.filter(803    (f) => AUTOFILL_FIELD_TYPES.has(f.type) && !processedInputs.has(f.el)804  );805806  for (const f of newFields) {807    reattachListeners(f.el, f.type, allFields);808  }809810  // Level 2, final pass: inject icon on any visible password field even if811  // the form-context gate in reattachListeners would normally skip it.812  if (aggressionLevel >= 2 && isFinalPass && newFields.length === 0) {813    const pwInputs = document.querySelectorAll<HTMLInputElement>('input[type="password"]');814    for (const el of pwInputs) {815      if (isVisible(el) && !processedInputs.has(el)) {816        const cleanup = injectFieldIcon(el, () => {817          currentDismiss?.();818          currentDismiss = null;819          lastDismissedField = null;820          dismissLock = false;821          if (dismissLockTimer) { clearTimeout(dismissLockTimer); dismissLockTimer = null; }822          clearFillStateForExplicitSummon(el);823          el.focus({ preventScroll: true });824          void handleFieldInteraction(el, true);825        });826        processedInputs.set(el, cleanup);827      }828    }829  }830}831832// @testable seam — gives unit tests read/write access to module-private state833// without exposing it in the production API surface.834export const _testSeam = {835  getLastDismissedField(): HTMLInputElement | null { return lastDismissedField; },836  setLastDismissedField(f: HTMLInputElement | null): void { lastDismissedField = f; },837  isDismissLocked(): boolean { return dismissLock; },838  DISMISS_LOCK_MS,839} as const;840841// ── TOTP-only fields ───────────────────────────────────────────────────────842// After a username/password submission, many sites swap the whole form for a843// lone "verification code" input. The credential selector intentionally gates844// on login/signup forms, so TOTP fields need a narrow path of their own.845const processedTOTPInputs = new WeakMap<HTMLInputElement, () => void>();846847function hasLoginOrSignupForm(): boolean {848  const fields = detectLoginFields();849  return isAnyCredentialForm(fields);850}851852function injectTOTPFieldIcon(853  field: HTMLInputElement,854  otpDigitBoxes?: HTMLInputElement[]855): void {856  if (processedTOTPInputs.has(field)) return;857  const cleanup = injectFieldIcon(field, () => {858    currentDismiss?.();859    currentDismiss = null;860    currentAnchorField = null;861    lastDismissedField = null;862    dismissLock = false;863    if (dismissLockTimer) { clearTimeout(dismissLockTimer); dismissLockTimer = null; }864    clearFillStateForExplicitSummon(field);865    field.focus({ preventScroll: true });866    void openTOTPSelector(field, otpDigitBoxes);867  });868  processedTOTPInputs.set(field, cleanup);869}870871// A split-OTP group (4+ OTP-signaling boxes lacking maxlength="1") shows one872// icon on the first box, not one per box. Returns the anchor to inject on873// (group[0]) and its full group, or just the field itself when it's a lone874// TOTP input.875function resolveTOTPIconTarget(876  field: HTMLInputElement877): { anchor: HTMLInputElement; group?: HTMLInputElement[] } {878  const group = findOtpSignalingGroup(field);879  if (group) return { anchor: group[0]!, group };880  return { anchor: field };881}882883export /* @testable */ function scanTOTPFields(): void {884  if (hasLoginOrSignupForm()) return;885  const inputs = document.querySelectorAll<HTMLInputElement>("input");886  for (const input of inputs) {887    if (!isTOTPField(input)) continue;888    const { anchor, group } = resolveTOTPIconTarget(input);889    injectTOTPFieldIcon(anchor, group);890  }891}892893function setupTOTPAutofill(): void {894  setTimeout(scanTOTPFields, 0);895  setTimeout(scanTOTPFields, 500);896  setTimeout(scanTOTPFields, 1500);897898  const debouncedScan = debounce(scanTOTPFields, 200);899  new MutationObserver(debouncedScan).observe(document.body, {900    childList: true,901    subtree: true,902    attributes: true,903    attributeFilter: ["autocomplete", "name", "id", "placeholder", "hidden"],904  });905906  document.addEventListener("focusin", (e) => {907    const target = e.target;908    if (!(target instanceof HTMLInputElement)) return;909    if (hasLoginOrSignupForm()) return;910    if (!isTOTPField(target)) return;911    const { anchor, group } = resolveTOTPIconTarget(target);912    injectTOTPFieldIcon(anchor, group);913  }, true);914}915916document.addEventListener("focusin", onFocusIn);917918setupMutationObserver();919setupTOTPAutofill();920setupSaveDetection();921setupCardAutofill();922923// SPA navigation reset: the content script does not reload across in-app924// route changes (history.pushState, hash navigation, framework routers).925// When the URL changes we clear the page-level fill timestamp so the next926// page works normally; filledForms (a WeakSet) self-empties as old form927// elements leave the DOM. subtree:false because route swaps reliably928// mutate document.body's direct children — subtree:true would fire on929// every internal DOM update and cost us a re-check per mutation.930let lastObservedUrl = globalThis.location.href;931new MutationObserver(() => {932  const currentUrl = globalThis.location?.href;933  if (!currentUrl || currentUrl === lastObservedUrl) return;934  lastObservedUrl = currentUrl;935  pageFilledAt = null;936}).observe(document.body, { childList: true, subtree: false });937938// Async init: check recall map before running the initial scans so we can939// apply the right aggression level for domains the user has needed before.940(async () => {941  let aggressionLevel = 0;942  try {943    const resp = await chrome.runtime.sendMessage({ type: "GET_SETTINGS" });944    const s = (resp as { ok: boolean; data?: { manualSummonDomains?: Record<string, { summonCount: number }> } }).data;945    const domain = getPageDomain();946    const record = domain ? s?.manualSummonDomains?.[domain] : undefined;947    aggressionLevel = !record ? 0 : record.summonCount >= 2 ? 2 : 1;948  } catch { /* SW may be starting up; proceed with normal scan */ }949950  setTimeout(() => initialScan(aggressionLevel, false), 0);951  setTimeout(() => initialScan(aggressionLevel, false), 500);952  setTimeout(() => initialScan(aggressionLevel, true), 1500);953})();954955// ── Card autofill (State 7) ─────────────────────────────────────────956// Card forms get a parallel injection path. The login icon-injection gate957// in reattachListeners deliberately skips non-text fields, so we wire958// cards independently rather than retrofit AUTOFILL_FIELD_TYPES — keeping959// card detection contained makes the boundary easy to follow.960const processedCardInputs = new WeakMap<HTMLInputElement, () => void>();961let currentCardDismiss: (() => void) | null = null;962let currentCardAnchor: HTMLInputElement | null = null;963let lastDismissedCardField: HTMLInputElement | null = null;964965async function fetchSavedCards(): Promise<CardSelectorEntry[]> {966  const resp = await chrome.runtime.sendMessage({967    type: "AUTOFILL_QUERY",968    payload: { domain: getPageDomain(), kind: "card" },969  }).catch(() => null);970  const r = resp as { ok: boolean; data?: CardSelectorEntry[] } | null;971  return r?.ok ? (r.data ?? []) : [];972}973974async function openCardSelector(anchor: HTMLInputElement): Promise<void> {975  if (!canOpen()) return;976  if (currentCardDismiss && currentCardAnchor === anchor) return;977  if (anchor === lastDismissedCardField) return;978  if (anchor !== lastDismissedCardField) lastDismissedCardField = null;979  if (wasAlreadyFilled(anchor)) return;980981  const cards = await fetchSavedCards();982  if (cards.length === 0) return; // no saved cards → nothing to offer983984  const cardForm = detectCardForm();985  if (!cardForm?.number) return;986987  currentCardDismiss?.();988  currentCardAnchor = anchor;989  currentCardDismiss = showCardSelector(990    anchor,991    cards,992    {993      domain: getPageDomain(),994      onFill: (entry) => {995        if (!cardForm) return;996        fillCardForm(cardForm, {997          cardNumber: entry.cardNumber ?? "",998          expMonth: entry.expMonth ?? "",999          expYear: entry.expYear ?? "",1000          cvc: entry.cvc ?? "",1001          cardholderName: entry.cardholderName ?? "",1002        });1003        // All four card field types share the same form — recording the1004        // number field's form is sufficient to suppress reopens on any of1005        // them via wasAlreadyFilled().1006        recordFillSuccess(cardForm.number, cardForm.cvc, cardForm.expiryCombo, cardForm.name);1007        currentCardDismiss = null;1008        currentCardAnchor = null;1009      },1010      onDismiss: () => {1011        lastDismissedCardField = anchor;1012        startDismissLock();1013        currentCardDismiss = null;1014        currentCardAnchor = null;1015      },1016    }1017  );1018}10191020function injectCardIcon(field: HTMLInputElement): void {1021  if (processedCardInputs.has(field)) return;1022  const cleanup = injectFieldIcon(field, () => {1023    currentCardDismiss?.();1024    currentCardDismiss = null;1025    lastDismissedCardField = null;1026    dismissLock = false;1027    if (dismissLockTimer) { clearTimeout(dismissLockTimer); dismissLockTimer = null; }1028    clearFillStateForExplicitSummon(field);1029    field.focus({ preventScroll: true });1030    void openCardSelector(field);1031  });1032  processedCardInputs.set(field, cleanup);1033}10341035function setupCardAutofill(): void {1036  function scan() {1037    const cardForm = detectCardForm();1038    if (!cardForm?.number) return;1039    if (!isVisible(cardForm.number)) return;1040    injectCardIcon(cardForm.number);1041  }10421043  // Initial detection sweep — same retry cadence as login fields so1044  // late-hydrating SPA checkout pages get caught.1045  setTimeout(scan, 0);1046  setTimeout(scan, 500);1047  setTimeout(scan, 1500);10481049  // Re-scan on DOM mutation (separate from the login MutationObserver1050  // because card forms typically appear on a single navigation event,1051  // not field-by-field — coarser observation is sufficient here).1052  let pending = false;1053  new MutationObserver(() => {1054    if (pending) return;1055    pending = true;1056    setTimeout(() => { pending = false; scan(); }, 200);1057  }).observe(document.body, { childList: true, subtree: true });10581059  // Field-focus path: on focus of a cc-number input, ensure icon is1060  // present and consider opening the selector when the user explicitly1061  // clicks into the card number field.1062  document.addEventListener("focusin", (e) => {1063    const target = e.target;1064    if (!(target instanceof HTMLInputElement)) return;1065    const cardForm = detectCardForm();1066    if (cardForm?.number === target) {1067      injectCardIcon(target);1068    }1069  }, true);1070}10711072chrome.runtime.onMessage.addListener((msg, sender, sendResponse) => {1073  // Ignore anything not originating from our own background/service worker.1074  if (sender.id !== chrome.runtime.id) return;1075  if (msg?.type === "GET_SITE_PASSWORD_POLICY") {1076    const policy = detectPasswordPolicy();1077    sendResponse({ ok: true, data: policy });1078    return true;1079  }1080  if (msg?.type === "PING") {1081    sendResponse({ ok: true });1082    return true;1083  }1084  if (msg?.type === "SUMMON_AUTOFILL") {1085    const source = (msg as { type: string; source?: string; capability?: string }).source;1086    const capability = (msg as { capability?: string }).capability;1087    const isShortcut = source === "shortcut";1088    const isPasskeyUnlock = source === "passkey-unlock";10891090    const activeInput = getDeepActiveInput();1091    const fields = detectLoginFields();1092    const hasForm = isAnyCredentialForm(fields);10931094    if (hasForm) {1095      // Prefer the currently focused field if it's a login field, otherwise1096      // fall back to the first password field, then username/email.1097      const inForm = activeInput && fields.some(f => f.el === activeInput);1098      const target = inForm1099        ? activeInput1100        : (fields.find(f => f.type === "password")?.el1101            ?? fields.find(f => f.type === "username" || f.type === "email")?.el);1102      if (target) {1103        // Explicit user summon (shortcut or extension button) — bypass all1104        // suppression layers. The user is asking for the popup right now.1105        clearFillStateForExplicitSummon(target);1106        dismissLock = false;1107        if (dismissLockTimer) { clearTimeout(dismissLockTimer); dismissLockTimer = null; }1108        lastDismissedField = null;1109        void handleFieldInteraction(target, true, capability);1110      }1111    } else if (isPasskeyUnlock) {1112      // Vault is locked during a passkey GET request. Show the inline unlock1113      // prompt anchored to whatever element is focused on the page (typically1114      // the passkey/sign-in button the user just tapped).1115      const anchor = (document.activeElement instanceof HTMLElement && document.activeElement !== document.body)1116        ? document.activeElement as unknown as HTMLInputElement1117        : null;1118      if (anchor) {1119        currentDismiss?.();1120        currentAnchorField = null;1121        passkeySummonActive = true;1122        currentDismiss = showAutofillSelector(anchor, [], () => {}, {1123          domain: getPageDomain(),1124          locked: true,1125          onDismiss: () => { passkeySummonActive = false; },1126        });1127      }1128    } else if (isShortcut) {1129      // Shortcut on a page with no login form — show clipboard-copy search mode.1130      showSearchPalette(capability);1131    }11321133    // Record this domain for the recall system when triggered via shortcut.1134    if (isShortcut) {1135      const domain = getPageDomain();1136      if (domain) {1137        chrome.runtime.sendMessage({ type: "RECORD_MANUAL_SUMMON", payload: { domain } }).catch(() => {});1138      }1139    }11401141    sendResponse({ ok: hasForm || isShortcut || isPasskeyUnlock });1142    return true;1143  }1144  if (msg?.type === "PASSKEY_PRO_GATE") {1145    // Background rejected a passkey request for a free user. Show State 111146    // so they know what happened and can choose to upgrade.1147    showPasskeyProGate();1148    sendResponse({ ok: true });1149    return true;1150  }1151  if (msg?.type === "SHOW_PASSKEY_TOAST") {1152    // Block autofill selector for the lifetime of the toast and dismiss anything open.1153    passkeyToastActive = true;1154    if (currentDismiss) {1155      currentDismiss();1156      currentDismiss = null;1157      currentAnchorField = null;1158    }1159    return false; // inject.tsx owns the toast and calls sendResponse1160  }1161  if (msg?.type === "DISMISS_PASSKEY_TOAST") {1162    passkeyToastActive = false;1163    return false; // inject.tsx handles the actual dismissal1164  }1165  if (msg?.type === "VAULT_UNLOCKED") {1166    if (passkeySummonActive) {1167      // This unlock was for a pending passkey GET request. Just dismiss the1168      // inline popup — the passkey approval toast takes over from here.1169      passkeySummonActive = false;1170      if (currentDismiss) {1171        currentDismiss();1172        currentDismiss = null;1173        currentAnchorField = null;1174      }1175      sendResponse({ ok: true });1176      return true;1177    }1178    // Normal autofill path: close the locked-state prompt and re-open with1179    // fresh entry data at the same anchor field.1180    const savedField = currentAnchorField;1181    if (currentDismiss) {1182      currentDismiss();1183      currentDismiss = null;1184      currentAnchorField = null;1185    }1186    void handleFieldInteraction(savedField ?? undefined);1187    sendResponse({ ok: true });1188    return true;1189  }1190  return true;1191});11921193// inject.tsx posts this when the passkey toast closes (approve, deny, or timeout)1194// so we know it's safe to allow autofill again.1195window.addEventListener("message", (e: MessageEvent) => {1196  // Reject postMessages from cross-frame senders — only the same window's1197  // injected toast may flip this flag.1198  if (e.source !== window) return;1199  const d = e.data as { source?: string; type?: string } | undefined;1200  if (d?.source === "peach-passkey-toast" && d?.type === "toast-closed") {1201    passkeyToastActive = false;1202  }1203});12041205// ── Firefox passkey detection bridge (legacy observer path) ─────────────1206//1207// Pre-v2.12.0 the MAIN-world `passkeys-firefox.ts` was an observer — it1208// emitted `peach-passkey-firefox` postMessages so this content script could1209// surface State 12 (an inline "Save passkey to Peach" offer). v2.12.01210// replaced the observer with a full interception proxy (the page never1211// reaches a real navigator.credentials.create on Firefox anymore), and the1212// approval UI is opened by the background as part of the ceremony itself.1213// When the proxy is active the offer would be redundant noise, so the1214// listener gates on the flag. Once the proxy is removed (Firefox ships1215// webAuthenticationProxy) this whole block goes too.1216if (!FIREFOX_USE_CONTENT_SCRIPT_PROXY) {1217  let lastPasskeyOfferAt = 0;1218  const PASSKEY_OFFER_COOLDOWN_MS = 30_000;12191220  window.addEventListener("message", (event: MessageEvent) => {1221    if (event.source !== window) return;1222    const data = event.data as { source?: string; type?: string; rpId?: string; rpName?: string; userName?: string; userDisplayName?: string } | undefined;1223    if (!data || data.source !== "peach-passkey-firefox") return;1224    if (detectBrowser() !== "firefox") return;1225    if (data.type !== "create") return;12261227    // Cooldown: a single page interaction can fire multiple credentials.create1228    // calls. Show the offer at most once per 30 seconds per page session.1229    const now = Date.now();1230    if (now - lastPasskeyOfferAt < PASSKEY_OFFER_COOLDOWN_MS) return;1231    lastPasskeyOfferAt = now;12321233    const domain = location.hostname.replace(/^www\./, "");1234    chrome.runtime.sendMessage({1235      type: "GET_PASSKEY_OFFER_DECLINED",1236      payload: { domain },1237    }).then((res: { ok: boolean; data?: boolean } | undefined) => {1238      if (res?.data === true) return;1239      const rpId = data.rpId ?? domain;1240      showPasskeyRegistrationOffer({1241        rpId,1242        rpName: data.rpName,1243        userName: data.userName,1244        userDisplayName: data.userDisplayName,1245      });1246    }).catch(() => {});1247  });1248}12491250// Surface State 11 (passkey-available) only when it adds value:1251//   - Cross-browser entry: Chrome passkey on Firefox or vice versa — neither1252//     browser will auto-route, so the banner explains the re-register need.1253//   - Firefox + same-browser entry: Firefox has no equivalent of1254//     webAuthenticationProxy, so without a banner the user has no signal that1255//     Peach is the source.1256// On Chrome with a same-browser entry: skip — webAuthenticationProxy handles1257// the page's own credentials.get transparently and the popup approval view1258// already surfaces it. A banner here would just be noise.1259//1260// Dedupe across navigation: each navigation re-injects this content script.1261// chrome.storage.session keyed by domain is the natural per-tab/per-session1262// memory; session storage clears when the user closes the browser.1263{1264  function checkPasskeyAvailability() {1265    const domain = location.hostname.replace(/^www\./, "");1266    if (!domain) return;1267    const sessionKey = `peach_state11_shown:${domain}`;1268    chrome.storage.session?.get(sessionKey).then((stored) => {1269      if (stored && (stored as Record<string, unknown>)[sessionKey]) return;1270      chrome.runtime.sendMessage({1271        type: "GET_PASSKEY_FOR_DOMAIN",1272        payload: { domain },1273      }).then((res: { ok: boolean; data?: { rpId: string; userName: string; browser?: "chrome" | "firefox" } | null } | undefined) => {1274        const data = res?.data;1275        if (!data) return;1276        const current = detectBrowser();1277        const isCrossBrowser =1278          data.browser && current !== "unknown" && data.browser !== current;1279        const valuableOnFirefox = current === "firefox";1280        if (!isCrossBrowser && !valuableOnFirefox) return;1281        chrome.storage.session?.set({ [sessionKey]: Date.now() }).catch(() => {});1282        showPasskeyAvailable({1283          rpId: data.rpId,1284          userName: data.userName,1285          fromBrowser: data.browser,1286          currentBrowser: current,1287        });1288      }).catch(() => {});1289    }).catch(() => {});1290  }12911292  // Defer until DOM is interactive — content_scripts run at document_idle but1293  // some pages still mutate visibly afterwards. A short delay also avoids1294  // surfacing the State 11 toast while the user is in the middle of typing.1295  if (document.readyState === "loading") {1296    document.addEventListener("DOMContentLoaded", () => setTimeout(checkPasskeyAvailability, 800));1297  } else {1298    setTimeout(checkPasskeyAvailability, 800);1299  }1300}