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Reading tracker data and returning to the landing page…

\n \n \n\n`;\n\n// Collector page that visits all sites and collects iframe data via postMessage\nconst collectHtml = `\n\n\n \n \n \n Collecting Tracker Data\n \n \n

Collecting tracker data from all sites...

Initializing...

\n\n \n \n\n`;\n\nconst indexHtml = `\n\n\n \n \n \n Demo Tracker Domain\n \n \n

Tracker Detection Demo — Demo Tracker Domain

This domain plays the tracker. Open the landing page instead.

/tracker.js?site=N — script embedded by the test sites (writes first-party storage)
/frame?site=N — iframe embedded by the test sites (writes this domain's storage)
/helper?return_url=... — reports this domain's storage back as ?tracker_data=
/collect?sites=...&return=... — collects iframe data from all sites via postMessage

\n \n\n`;\n\n// Escape for embedding inside a double-quoted JS string literal in the page.\nfunction jsString(value: string): string {\n return value\n .replace(/\\\\/g, \"\\\\\\\\\")\n .replace(/\"/g, '\\\\\"')\n .replace(/ 0 &&\n !ALLOWED_RETURN_ORIGINS.includes(parsed.origin)\n ) {\n return DEFAULT_RETURN_URL;\n }\n return parsed.toString();\n}\n\n// Learn more: https://docs.val.town/vals/http/\nexport default async function (req: Request): Promise {\n const url = new URL(req.url);\n\n if (url.pathname === \"/tracker.js\") {\n const body = trackerJs\n .replace(\"__STORAGE_KEY__\", jsString(STORAGE_KEY))\n .replace(\"__SITE__\", jsString(siteLabel(url)));\n\n return new Response(body, {\n headers: {\n \"content-type\": \"application/javascript; charset=utf-8\",\n \"cache-control\": \"no-store\",\n },\n });\n }\n\n if (url.pathname === \"/frame\") {\n const body = frameHtml\n .replace(\"__STORAGE_KEY__\", jsString(STORAGE_KEY))\n .replace(\"__SITE__\", jsString(siteLabel(url)));\n\n return new Response(body, {\n headers: {\n \"content-type\": \"text/html; charset=utf-8\",\n \"cache-control\": \"no-store\",\n },\n });\n }\n\n if (url.pathname === \"/helper\") {\n const body = helperHtml\n .replace(\"__NEXT_URL__\", jsString(resolveReturnUrl(url)))\n .replace(\"__STORAGE_KEY__\", jsString(STORAGE_KEY));\n\n return new Response(body, {\n headers: {\n \"content-type\": \"text/html; charset=utf-8\",\n \"cache-control\": \"no-store\",\n },\n });\n }\n\n if (url.pathname === \"/collect\") {\n // Parse sites from query params\n const sitesParam = url.searchParams.get(\"sites\");\n const returnUrl = url.searchParams.get(\"return_url\") || DEFAULT_RETURN_URL;\n\n // Default to all 3 sites if not specified\n const sites = sitesParam\n ? sitesParam.split(\",\").map((s) => s.trim())\n : [\"site-1\", \"site-2\", \"site-3\"];\n\n const body = collectHtml\n .replace(\"__SITES__\", JSON.stringify(sites))\n .replace(\"__RETURN_URL__\", jsString(returnUrl))\n .replace(\"__TRACKER_DOMAIN__\", jsString(url.origin));\n\n return new Response(body, {\n headers: {\n \"content-type\": \"text/html; charset=utf-8\",\n \"cache-control\": \"no-store\",\n },\n });\n }\n\n if (url.pathname === \"/\") {\n return new Response(indexHtml, {\n headers: { \"content-type\": \"text/html; charset=utf-8\" },\n });\n }\n\n return new Response(\"Not found\", { status: 404 });\n}","deleted","label",[109],"pulls","branches",1,"forks","envVars",{"_132":42,"_134":42},"connections",{"_132":42,"_133":42},"count","unfilledCount","emptyCount",{"_18":108,"_20":109,"_110":36,"_111":-5,"_112":68,"_113":66,"_114":38,"_22":136,"_65":116,"_117":118,"_119":120,"_121":26,"_122":21,"_137":138,"_86":139},["D",1787309849991],"children",[],[109],["D",1785495375539],{"_16":17,"_84":80},{"_16":17,"_77":78,"_79":80,"_33":34,"_81":82,"_83":26},{"_65":66,"_20":67,"_18":68,"_69":19,"_70":-5,"_71":-5,"_72":-5,"_73":-5,"_74":-5,"_75":21,"_76":17},"ctx",{"_58":-5,"_104":177,"_178":179,"_180":181,"_182":26,"_183":26,"_184":26,"_185":38,"_186":-5,"_187":-7,"_188":-7,"_189":42,"_190":26,"_191":26,"_192":-5,"_193":26,"_194":26,"_195":26,"_196":-5},"ENV",{"_148":149,"_150":151,"_152":67,"_153":154,"_155":156,"_157":158,"_159":160,"_161":162,"_163":164,"_165":166,"_167":168,"_169":170,"_171":172,"_173":174,"_175":176},"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"]

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