Ilia Denisov
990cb4a68d
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Make the web SPA an installable PWA and surface it to users: - manifest.webmanifest + an install-only service worker + 192/512/maskable icons (ui/public); PWA head tags in index.html; the .webmanifest MIME type registered in the gateway (the distroless image has no /etc/mime.types). - Platform-adaptive install CTA (components/InstallApp.svelte + lib/pwa): one-tap on Chromium, manual Add-to-Home-Screen instructions on iOS Safari, hidden elsewhere / once installed / inside a Mini App. Shown under the logged-out login card and at the bottom of Settings. - The landing gains a third entry linking /app/ (the brand tile), with a caption under all three (Telegram / VK / Веб-версия). The service worker is navigation-only (network-first, cached-shell fallback); hashed assets and the Connect stream are untouched. It exists to satisfy Chromium's installability requirement and is the single growth point for a future opt-in offline mode. Tests: pwa.ts unit tests; a webui probe (manifest/sw.js content-type + the SPA-fallback-to-HTML trap); e2e for the one-tap CTA, the iOS instructions modal and the landing web entry. Docs: ARCHITECTURE §13, FUNCTIONAL (+ru), gateway README.
277 lines
14 KiB
HTML
277 lines
14 KiB
HTML
<!doctype html>
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<html lang="ru">
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<head>
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<meta charset="UTF-8" />
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<!-- Boot capability guard. Runs before the deferred ES module, in plain ES5 so it survives even
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on an engine too old to parse the bundle. Three jobs, as early as possible:
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1. Hard gate — if an UNPOLYFILLABLE essential is missing (BigInt for the 64-bit
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FlatBuffers wire decode, Proxy for Svelte 5 runes) the app cannot run at all: show the
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unsupported-engine screen (an old Android System WebView, e.g. Chromium 66, is the case
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this guards) instead of a white screen.
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2. Soft gate — if only polyfillable es2020+ globals are missing (globalThis,
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structuredClone, Array.at, …) pull core-js (emitted as polyfills.js) BEFORE the module
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runs. document.write is deliberate: the only way to inject a parser-blocking <script>
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guaranteed to run ahead of a deferred module; its argument is a static literal, so no
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injection surface.
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3. Reactive net — record any uncaught error/rejection during boot; if the app has not
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signalled window.__booted within a grace period AND an error fired, show the same
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screen with the captured cause (covers a bundle that fails to parse, or an unforeseen
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incompatibility). __booted is set in App.svelte once bootstrap resolves.
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The screen has a "Diagnostic information" view (engine + feature table + reason + version)
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with a Copy button. On a capable engine nothing here renders, so neither the bundle-size
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budget nor the mock e2e is affected. -->
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<script>
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(function () {
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'use strict';
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var nav = navigator;
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var ua = nav.userAgent || '';
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var VERSION = '__BOOT_VERSION__'; // replaced at build (vite.config injectBootVersion)
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var RU = (nav.language || '').toLowerCase().indexOf('ru') === 0;
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var MINIAPP = /\/(?:telegram|vk)\//.test(location.pathname);
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var WEBURL = location.protocol + '//' + location.host + '/app/';
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// [label, test, Chrome version it landed in, hard?] — hard = required and unpolyfillable.
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function has(fn) {
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try {
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return !!fn();
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} catch (e) {
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return false;
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}
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}
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var probes = [
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['BigInt', function () { return typeof BigInt !== 'undefined'; }, 67, true],
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['Proxy', function () { return typeof Proxy !== 'undefined'; }, 49, true],
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['globalThis', function () { return typeof globalThis !== 'undefined'; }, 71, false],
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['structuredClone', function () { return typeof structuredClone === 'function'; }, 98, false],
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['Array.prototype.at', function () { return typeof [].at === 'function'; }, 92, false],
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['Array.prototype.findLast', function () { return typeof [].findLast === 'function'; }, 97, false],
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['Object.hasOwn', function () { return typeof Object.hasOwn === 'function'; }, 93, false],
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['Object.fromEntries', function () { return typeof Object.fromEntries === 'function'; }, 73, false],
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['Promise.allSettled', function () { return !!Promise.allSettled; }, 76, false],
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['Promise.any', function () { return !!Promise.any; }, 85, false],
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['WeakRef', function () { return typeof WeakRef !== 'undefined'; }, 84, false],
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['queueMicrotask', function () { return typeof queueMicrotask === 'function'; }, 71, false]
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];
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var results = [];
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var hardMissing = [];
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var softMissing = false;
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for (var i = 0; i < probes.length; i++) {
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var ok = has(probes[i][1]);
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results.push({ name: probes[i][0], ok: ok, chrome: probes[i][2], hard: probes[i][3] });
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if (!ok) {
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if (probes[i][3]) hardMissing.push(probes[i][0]);
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else softMissing = true;
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}
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}
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// The diagnostic report (built on demand, behind the button).
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function diag(reason) {
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var cm = /Chrom(?:e|ium)\/(\d+)/.exec(ua);
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var wv = /;\s*wv\)/.test(ua) || /\bwv\b/.test(ua);
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var out = [];
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out.push('reason : ' + reason);
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out.push('app : ' + VERSION);
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out.push('chromium : ' + (cm ? cm[1] : 'n/a') + (wv ? ' (Android WebView)' : ''));
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out.push('userAgent : ' + ua);
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out.push('url : ' + location.href);
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out.push('viewport : ' + window.innerWidth + 'x' + window.innerHeight + ' @' + (window.devicePixelRatio || 1));
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out.push('lang : ' + (nav.language || '?') + ' online: ' + nav.onLine);
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out.push('');
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out.push('features:');
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for (var k = 0; k < results.length; k++) {
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var r = results[k];
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out.push(' ' + (r.ok ? 'OK' : 'NO') + ' ' + r.name + ' (' + (r.hard ? 'required' : 'polyfilled') + ', Chrome ' + r.chrome + ')');
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}
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return out.join('\n');
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}
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function el(tag, style, text) {
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var e = document.createElement(tag);
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if (style) e.setAttribute('style', style);
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if (text != null) e.appendChild(document.createTextNode(text));
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return e;
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}
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function btn(bg, fg) {
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return 'display:inline-block;margin:0 10px 10px 0;padding:11px 18px;border:0;border-radius:8px;' +
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'font:600 15px/1 inherit;cursor:pointer;color:' + fg + ';background:' + bg + ';';
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}
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var shown = false;
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// Fire-and-forget beacon so the gateway can count who hits this screen (Grafana). Deduped
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// in localStorage by app version + reason + Chromium, so a user reopening the app ten times
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// is one report. sendBeacon (Chrome 39+, present on the engines that reach here) with a
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// fetch fallback; both are best-effort and never block or throw.
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function beacon(code) {
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try {
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var cm = /Chrom(?:e|ium)\/(\d+)/.exec(ua);
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var chromium = cm ? cm[1] : '';
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var sig = VERSION + '|' + code + '|' + chromium;
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try {
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if (localStorage.getItem('scrabble_unsupp') === sig) return;
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} catch (e) {}
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var payload = JSON.stringify({ reason: code, chromium: chromium, version: VERSION, ua: ua });
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var sent = false;
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try {
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if (nav.sendBeacon) sent = nav.sendBeacon('/telemetry/unsupported', new Blob([payload], { type: 'application/json' }));
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} catch (e) {}
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if (!sent && typeof fetch === 'function') {
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try {
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fetch('/telemetry/unsupported', { method: 'POST', body: payload, headers: { 'Content-Type': 'application/json' }, keepalive: true }).catch(function () {});
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sent = true;
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} catch (e) {}
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}
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if (sent) {
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try {
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localStorage.setItem('scrabble_unsupp', sig);
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} catch (e) {}
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}
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} catch (e) {}
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}
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function show(reason, code) {
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if (shown) return;
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shown = true;
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beacon(code);
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var root = el('div', 'position:fixed;left:0;top:0;right:0;bottom:0;z-index:2147483647;overflow:auto;' +
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'-webkit-overflow-scrolling:touch;background:#0f1115;color:#e8eaed;box-sizing:border-box;padding:24px;' +
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'font:16px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;');
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var wrap = el('div', 'max-width:520px;margin:0 auto;');
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root.appendChild(wrap);
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var msg = el('div', null);
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msg.appendChild(el('div', 'font-size:22px;font-weight:700;margin-bottom:14px;', 'Эрудит'));
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msg.appendChild(el('p', 'margin:0 0 14px;', RU
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? 'На вашей версии операционной системы или браузера приложение не сможет работать.'
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: "This app can't run on your device's operating system or browser version."));
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if (MINIAPP) {
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msg.appendChild(el('p', 'margin:0 0 6px;', RU
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? 'Откройте веб-версию в обычном браузере (Chrome, Firefox):'
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: 'Open the web version in a regular browser (Chrome, Firefox):'));
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var a = el('a', 'color:#8ab4ff;word-break:break-all;', WEBURL);
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a.setAttribute('href', WEBURL);
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a.setAttribute('target', '_blank');
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a.setAttribute('rel', 'noopener');
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var lp = el('p', 'margin:0 0 18px;');
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lp.appendChild(a);
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msg.appendChild(lp);
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}
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var infoBtn = el('button', btn('#2a2f3a', '#e8eaed'), RU ? 'Диагностическая информация' : 'Diagnostic information');
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msg.appendChild(infoBtn);
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wrap.appendChild(msg);
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var dv = el('div', 'display:none;');
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var pre = el('pre', 'white-space:pre-wrap;word-break:break-word;background:#0b0d11;border-radius:8px;padding:12px;' +
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'font:12.5px/1.45 ui-monospace,Menlo,Consolas,monospace;overflow:auto;', diag(reason));
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dv.appendChild(pre);
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var copyBtn = el('button', btn('#8ab4ff', '#0b0d11'), RU ? 'Копировать' : 'Copy');
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var backBtn = el('button', btn('#2a2f3a', '#e8eaed'), RU ? 'Назад' : 'Back');
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var row = el('div', 'margin-top:12px;');
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row.appendChild(copyBtn);
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row.appendChild(backBtn);
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dv.appendChild(row);
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wrap.appendChild(dv);
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infoBtn.onclick = function () {
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msg.style.display = 'none';
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dv.style.display = 'block';
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};
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backBtn.onclick = function () {
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dv.style.display = 'none';
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msg.style.display = 'block';
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};
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copyBtn.onclick = function () {
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var txt = diag(reason);
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try {
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if (nav.clipboard && nav.clipboard.writeText) {
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nav.clipboard.writeText(txt);
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copyBtn.firstChild.nodeValue = RU ? 'Скопировано' : 'Copied';
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return;
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}
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} catch (e) {}
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try {
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var ta = document.createElement('textarea');
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ta.value = txt;
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ta.setAttribute('style', 'position:fixed;left:-9999px;top:0;');
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document.body.appendChild(ta);
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ta.select();
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document.execCommand('copy');
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document.body.removeChild(ta);
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copyBtn.firstChild.nodeValue = RU ? 'Скопировано' : 'Copied';
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} catch (e2) {
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copyBtn.firstChild.nodeValue = RU ? 'Выделите и скопируйте текст' : 'Select and copy the text';
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}
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};
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function mount() {
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document.body.insertBefore(root, document.body.firstChild);
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}
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if (document.body) mount();
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else document.addEventListener('DOMContentLoaded', mount);
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}
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// 1 + 2: the gate.
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if (hardMissing.length) {
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show((RU ? 'нет: ' : 'missing: ') + hardMissing.join(', '), hardMissing.indexOf('BigInt') >= 0 ? 'no_bigint' : 'no_proxy');
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} else if (softMissing) {
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document.write('<script src="polyfills.js"><\/script>');
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}
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// 3: the reactive net for an unforeseen boot failure.
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var bootErr = null;
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function note(m) {
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if (!bootErr) bootErr = m;
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}
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window.onerror = function (m, s, l, c, e) {
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note(String(m) + (e && e.stack ? '\n' + e.stack : s ? ' @ ' + s + ':' + l : ''));
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return false;
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};
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window.addEventListener('error', function (e) {
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if (e && e.message) note(e.message + (e.filename ? ' @ ' + e.filename + ':' + e.lineno : ''));
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}, true);
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window.addEventListener('unhandledrejection', function (e) {
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var r = e && e.reason;
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note(r && (r.stack || r.message) ? r.stack || r.message : String(r));
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});
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setTimeout(function () {
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if (!window.__booted && bootErr && !shown) show((RU ? 'ошибка запуска: ' : 'boot error: ') + bootErr, 'boot_error');
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}, 8000);
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})();
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</script>
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<!-- The SPA shell is an empty client-rendered document behind the public landing — keep it
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out of search indexes (robots.txt deliberately does NOT disallow /app/, so crawlers can
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reach this tag). -->
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<meta name="robots" content="noindex" />
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<!-- The Telegram Mini App SDK (window.Telegram.WebApp) is deliberately NOT loaded here: a
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render-blocking <script> to telegram.org hangs the whole page on a network that blocks
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telegram.org (common where Telegram itself reaches users only over a proxy), stranding even
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the launch-diagnostic screen. The app loads it dynamically, with a timeout, only on a
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Telegram entry — see lib/telegram.ts loadTelegramSDK and lib/app.svelte.ts bootstrap. -->
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<!-- user-scalable=no: the board owns zoom; we do not want the browser's pinch
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to fight our two-state zoom. viewport-fit=cover for native (Capacitor). -->
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<meta
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name="viewport"
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content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no, viewport-fit=cover"
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/>
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<title>Эрудит (Скрэббл)</title>
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<!-- Relative icon hrefs: the gateway serves the same build under /app/, /telegram/ and /vk/. -->
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<link rel="icon" href="favicon.ico" sizes="32x32" />
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<link rel="icon" type="image/svg+xml" href="favicon.svg" />
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<link rel="apple-touch-icon" href="apple-touch-icon.png" />
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<!-- PWA installability (web /app/ only): the manifest + a service worker (registered from
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lib/pwa, web-only) let the app be added to the home screen / desktop. The relative href
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resolves per serving path; these tags are inert inside the Telegram/VK Mini App webviews,
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which manage their own chrome. theme-color mirrors the light/dark --bg tokens (app.css). -->
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<link rel="manifest" href="manifest.webmanifest" />
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<meta name="theme-color" content="#f3f4f6" media="(prefers-color-scheme: light)" />
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<meta name="theme-color" content="#0f1115" media="(prefers-color-scheme: dark)" />
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<meta name="mobile-web-app-capable" content="yes" />
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<meta name="apple-mobile-web-app-capable" content="yes" />
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<meta name="apple-mobile-web-app-status-bar-style" content="default" />
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<meta name="apple-mobile-web-app-title" content="Эрудит" />
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<meta name="application-name" content="Эрудит" />
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</head>
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<body>
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<div id="app"></div>
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<script type="module" src="/src/main.ts"></script>
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</body>
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</html>
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