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Type a search term or URL, and it opens the\nproxied site inside a fresh `about:blank` tab.\n\n## Features\n\n- **about:blank cloaking** — proxied sites open in a blank tab so the real\n destination is hidden from the address bar.\n- **In-tab navigation bar** — back / forward / reload / home, a URL bar to keep\n browsing without returning to the homepage, and `Esc` to toggle full-screen.\n- **Tab disguises** — make the tab look like Google Docs, Classroom, Drive,\n Gmail, or Canvas (custom title + favicon).\n- **Panic key** — press a chosen key anytime to instantly jump to a safe URL.\n- **Search engines** — DuckDuckGo, Bing, or Google.\n- **Settings persistence** — preferences saved in `localStorage`.\n\n## How it works\n\n```mermaid\nflowchart LR\n A[Homepage] -->|submit| B{Cloak on?}\n B -->|yes| C[Open about:blank tab]\n C --> D[Disguised shell + iframe → /view]\n B -->|no| E[Navigate to /go]\n D --> F[\"/view (toolbar + iframe)\"]\n F --> G[\"/go?q=…&e=engine\"]\n E --> G\n G -->|normalize input| H[\"/p/<encoded url>\"]\n H --> I[Server fetches target]\n I --> J[Rewrite HTML/CSS links back through proxy]\n J --> K[Serve to browser]\n```\n\n## Files\n\n| File | Purpose |\n| --- | --- |\n| `main.ts` | HTTP entrypoint |\n| `server/app.ts` | Hono routes: `/`, `/view`, `/go`, `/p/*`, static, `/source` |\n| `server/proxy.ts` | Fetch + HTML/CSS rewriting, search-engine normalization |\n| `frontend/index.html` | Homepage with search + settings |\n| `frontend/main.js` | Cloaking, disguise, engine, panic key, settings |\n| `frontend/disguises.js` | Tab disguise presets (title + inline-SVG favicon) |\n| `frontend/viewer.html` | In-tab browser shell (toolbar + iframe) |\n| `frontend/viewer.js` | Toolbar logic: URL bar, nav buttons, bar toggle |\n\n## ⚠️ Limitations\n\nThis is a **server-side HTML-rewriting proxy**, not a full engine like\nUltraviolet/Rammerhead. It works well for simple/static sites and reading. It will\nstruggle with heavy JS apps, logins, video streaming, and strict anti-bot sites,\nwhich is expected given Val Town's serverless execution limits.\n",[],[184],"f37f8f5c-5b89-11f1-a69c-ee650bb23af1","proxy.ts","8a9973d6-5b89-11f1-9ba0-ee650bb23af1","f66e6981-5efb-424e-bf00-6c73153f516e",15,["D",1780078347891],"script","// Core proxy logic: fetch a target URL and rewrite its HTML/CSS so that\n// links, assets, and forms route back through this proxy.\n\nconst PROXY_PREFIX = \"/p/\";\n\nconst SEARCH_ENGINES: Record string> = {\n duckduckgo: (q) => `https://duckduckgo.com/html/?q=${encodeURIComponent(q)}`,\n bing: (q) => `https://www.bing.com/search?q=${encodeURIComponent(q)}`,\n google: (q) => `https://www.google.com/search?q=${encodeURIComponent(q)}`,\n};\n\n/** Turn user input into a real URL. If it's not a URL, treat it as a search. */\nexport function normalizeTarget(input: string, engine = \"duckduckgo\"): string {\n const raw = input.trim();\n if (!raw) return \"\";\n // Looks like a domain or URL?\n const looksLikeUrl = /^https?:\\/\\//i.test(raw) ||\n /^[^\\s]+\\.[a-z]{2,}(\\/|$|\\?)/i.test(raw);\n if (looksLikeUrl) {\n return /^https?:\\/\\//i.test(raw) ? raw : `https://${raw}`;\n }\n // Otherwise, run a search through the chosen engine\n const search = SEARCH_ENGINES[engine] ?? SEARCH_ENGINES.duckduckgo;\n return search(raw);\n}\n\n/** Encode a target URL into a proxied path. */\nexport function toProxyPath(targetUrl: string): string {\n return PROXY_PREFIX + encodeURIComponent(targetUrl);\n}\n\n/** Resolve a (possibly relative) URL against a base into an absolute URL. */\nfunction absolutize(base: string, ref: string): string | null {\n try {\n if (!ref || ref.startsWith(\"data:\") || ref.startsWith(\"javascript:\") ||\n ref.startsWith(\"mailto:\") || ref.startsWith(\"#\") || ref.startsWith(\"about:\")) {\n return null;\n }\n return new URL(ref, base).toString();\n } catch {\n return null;\n }\n}\n\n/** Rewrite an absolute URL into a proxied path. */\nfunction rewriteUrl(base: string, ref: string): string {\n const abs = absolutize(base, ref);\n if (!abs) return ref;\n return toProxyPath(abs);\n}\n\n/** Rewrite all URL-bearing attributes and embedded CSS in an HTML document. */\nexport function rewriteHtml(html: string, base: string): string {\n let out = html;\n\n // Strip CSP / frame-busting meta tags that block proxying\n out = out.replace(/]+http-equiv=[\"']?content-security-policy[\"']?[^>]*>/gi, \"\");\n out = out.replace(/]+http-equiv=[\"']?x-frame-options[\"']?[^>]*>/gi, \"\");\n\n // Rewrite href/src/action attributes\n out = out.replace(\n /\\b(href|src|action|poster|data-src)\\s*=\\s*[\"']([^\"']*)[\"']/gi,\n (m, attr, val) => `${attr}=\"${rewriteUrl(base, val)}\"`,\n );\n\n // Rewrite srcset (comma-separated list of URLs + descriptors)\n out = out.replace(/\\bsrcset\\s*=\\s*[\"']([^\"']*)[\"']/gi, (m, val) => {\n const rewritten = val\n .split(\",\")\n .map((part: string) => {\n const seg = part.trim();\n const [url, ...rest] = seg.split(/\\s+/);\n return [rewriteUrl(base, url), ...rest].join(\" \");\n })\n .join(\", \");\n return `srcset=\"${rewritten}\"`;\n });\n\n // Rewrite url(...) inside inline ` +\n ``\n );\n doc.close();\n}\n\nform.addEventListener(\"submit\", (e) => {\n e.preventDefault();\n const q = input.value.trim();\n if (!q) return;\n if (cloak.checked) {\n openCloaked(q);\n input.value = \"\";\n } else {\n location.href = entryPath(q);\n }\n});\n\n// ---- Panic key: jump to a safe URL instantly ----\nwindow.addEventListener(\"keydown\", (e) => {\n const key = (panicKey.value || \"`\").toLowerCase();\n // Ignore when typing into a text field (so you can type the key normally)\n const typing = document.activeElement &&\n [\"INPUT\", \"TEXTAREA\", \"SELECT\"].includes(document.activeElement.tagName);\n if (!typing && e.key.toLowerCase() === key) {\n e.preventDefault();\n location.replace(panicUrl.value || \"https://classroom.google.com\");\n }\n});\n",[],[149,227],"e16feeec-5b89-11f1-89bb-ee650bb23af1","index.html","9721d666-5b89-11f1-b95b-ee650bb23af1",12,["D",1780078317591],"\n\n\n \n \n Portal\n 🔍\" />\n \n \n\n\n

🔍

Portal

Search or enter a URL. Opens in a cloaked tab.

\n\n

\n\n \n\n\n",[],[149,235],"e671e86e-5b89-11f1-80bc-ee650bb23af1","disguises.js","e671e90e-5b89-11f1-80bc-ee650bb23af1",13,["D",1780078325993],"// Tab disguise presets: title + favicon (as a data URL) per option.\n// Favicons are tiny inline SVGs so nothing external can break.\n\nfunction svgFavicon(emoji, bg) {\n const svg =\n ``;\n return \"data:image/svg+xml,\" + encodeURIComponent(svg);\n}\n\nexport const DISGUISES = {\n none: { title: \"about:blank\", icon: \"data:,\" },\n docs: { title: \"Untitled document - Google Docs\", icon: svgFavicon(\"📄\", \"#fff\") },\n classroom: { title: \"Classes\", icon: svgFavicon(\"🏫\", \"#0f9d58\") },\n drive: { title: \"My Drive - Google Drive\", icon: svgFavicon(\"📁\", \"#fff\") },\n gmail: { title: \"Inbox - Gmail\", icon: svgFavicon(\"✉️\", \"#ea4335\") },\n canvas: { title: \"Dashboard\", icon: svgFavicon(\"🎨\", \"#e13223\") },\n};\n",[],[149,243],"9721eebc-5b89-11f1-b95b-ee650bb23af1",["D",1780078192931],[163,164,165,166,167],[149],["D",1780078144908],{"_11":12,"_118":69},{"_11":12,"_114":12,"_68":69,"_30":67,"_115":116,"_117":24},{"_38":105,"_13":16,"_32":35,"_106":71,"_107":-5,"_108":-5,"_109":-5,"_110":-5,"_111":-5,"_112":14,"_113":12},"ctx",{"_52":-5,"_138":291,"_292":293,"_294":295,"_296":24,"_297":24,"_298":24,"_299":136,"_300":-5,"_301":-7,"_302":-7,"_303":26,"_304":24,"_305":24,"_306":-5,"_307":24,"_308":24,"_309":24,"_310":-5},"ENV",{"_262":263,"_264":265,"_266":16,"_267":268,"_269":270,"_271":272,"_273":274,"_275":276,"_277":278,"_279":280,"_281":282,"_283":284,"_285":286,"_287":288,"_289":290},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","e87eb04e707cf64e7e532c8e8ec395f209e17f15","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

History · viewer.html