[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10},"actionData","errors","root",{"_165":166,"_167":168},"routes/_app.x.$handle.$name",{"_95":94,"_32":45,"_103":85,"_27":104,"_13":14,"_105":-5,"_11":106,"_107":108,"_109":110,"_111":112,"_113":114,"_20":-5,"_115":-5,"_116":-5,"_117":25,"_118":119,"_120":49,"_121":-5,"_122":-5,"_123":124},"routes/_app.x.$handle.$name.branch.$branch.version.$version.diff",{"_11":12,"_13":14,"_15":16,"_17":-5,"_18":-5},"project",{"_43":44,"_32":45,"_38":46,"_47":-5,"_48":49,"_50":51,"_52":51,"_53":-5,"_54":-5,"_18":55,"_56":31,"_57":49,"_58":-5,"_59":-5,"_60":61,"_62":63,"_64":-5,"_65":-5,"_66":-5,"_67":-5,"_68":69,"_70":69,"_71":72,"_73":72,"_74":72,"_75":69,"_76":69,"_77":78,"_79":80,"_81":82,"_83":25},"version",20,"changes",[19],"aiChatInfo","userId",{"_20":21,"_22":23,"_24":25,"_26":25,"_27":28,"_29":28},"file",{"_30":31,"_32":28,"_33":34,"_35":37,"_38":39,"_40":14,"_41":42,"_24":25},"previous",{"_30":31,"_32":28,"_33":34,"_35":36},"deleted",false,"deletedHere","path","main.tsx","latestPath","fileId","427f9f14-25f0-11f0-ad23-569c3dd06744","name","fileType","http","content","/** @jsxImportSource https://esm.sh/react */\nimport { useState } from \"https://esm.sh/react@18.2.0\";\n\nexport function App() {\n const [logs, setLogs] = useState([]);\n function request(url, options) {\n return async function() {\n const response = await fetch(url, options);\n const status = response.status;\n const data = await response.text();\n logs.push(`${options?.method || \"GET\"} ${url} [${status}] ${data}`);\n };\n }\n return (\n

CORS Example

\n \n \n

Logs

{logs.join(\"\\n\")}

CORS Example

\n \n \n

Logs

{logs.join(\"\\n\")}

\n );\n}\n\nexport default async function(req: Request) {\n const url = new URL(req.url);\n if (url.pathname === \"/\") {\n return new Response(\n `\n \n \n `,\n {\n headers: {\n \"content-type\": \"text/html\",\n },\n },\n );\n } else if (url.pathname === \"/data\") {\n return Response.json({ data: \"Hello from Deno!\" });\n }\n return new Response(null, { status: 404 });\n}","createdAt",["D",1714759281566],"branchVersion","branchId","427d135c-25f0-11f0-ad23-569c3dd06744","id","427ccbd6-25f0-11f0-ad23-569c3dd06744","cors_example",["D",1746037428632],"deletedAt","legacyEnvVars",true,"privacy","public","httpPrivacy","description","imageUrl","a0bf3b31-15a5-4d5c-880e-4b1e22c9bc18","pinnedFileId","pinPreview","pinMigrated","screenshotVersion","likeCount",2,"orgId","e81e7335-6d4c-4764-a902-d0962bbfa9f7","tursoName","tursoHostname","tursoMeasuredAt","pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_95":94,"_102":98},"org",{"_95":94,"_96":-5,"_97":98,"_18":55,"_99":100,"_101":25},"branch",{"_13":84,"_32":85,"_43":42,"_86":44,"_87":-5,"_88":-5,"_89":-5,"_90":-5,"_91":-5,"_92":45,"_93":94},"isOwned",46,"main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","stevekrouse","handle","displayName","avatar","https://images.clerk.dev/uploaded/img_2PqHa2Gsy93xQrjh2w78Xu0cChW.jpeg","tier","pro","canRestrictVals","profileImageUrl","branchName","","adoptOrgId",{"_43":44,"_32":45,"_38":161,"_47":-5,"_48":49,"_50":51,"_52":51,"_53":-5,"_54":-5,"_18":55,"_56":31,"_57":49,"_58":-5,"_59":-5,"_60":61,"_62":63,"_64":-5,"_65":-5,"_66":-5,"_67":-5,"_68":69,"_70":69,"_71":72,"_73":72,"_74":72,"_75":69,"_76":69,"_77":162,"_79":163,"_81":164,"_83":25},"tree",[152,153],"files",[152,153],"counts",{"_142":139,"_143":137,"_144":61,"_145":146,"_147":148},"contents",[125,126],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_43":134,"_32":135,"_30":136,"_128":-5,"_41":42,"_40":137,"_129":49,"_38":138,"_13":139,"_33":20,"_35":140,"_24":25,"_132":-5,"_27":141},{"_43":127,"_32":28,"_30":31,"_128":-5,"_41":42,"_40":14,"_129":25,"_38":130,"_13":131,"_33":34,"_35":37,"_24":25,"_132":-5,"_27":133},"42c0414a-25f0-11f0-ad23-569c3dd06744","parentId","latest",["D",1714759281566],19,"label",[28],"427fbe90-25f0-11f0-ad23-569c3dd06744","README.md","427fbf58-25f0-11f0-ad23-569c3dd06744",1,["D",1699666828547],0,"[CORS](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS) issues are the bane of frontend engineers.\n\nIn Val Town, if you don't customize any CORS headers, we add these defaults:\n\n```\nAccess-Control-Allow-Origin: \"*\"\nAccess-Control-Allow-Methods: \"GET,HEAD,PUT,PATCH,POST,DELETE\"\n```\n\nYou can override them if you wish to disallow CORS. \n\nThis val is a client-side-rendered React app that makes requests to @stevekrouse/cors_example_backend. The backend is in a different val because CORS applies to requests on different domains. The backend has examples of the default permissive CORS behavior and disabled CORS. \n\nMigrated from folder: Archive/cors_example",[135],"pulls","branches","forks","envVars",{"_149":139,"_151":139},"connections",{"_149":139,"_150":139},"count","unfilledCount","emptyCount",{"_43":134,"_32":135,"_30":136,"_128":-5,"_41":42,"_40":137,"_129":49,"_38":158,"_13":139,"_33":20,"_35":140,"_24":25,"_132":-5,"_155":159,"_27":160},{"_43":127,"_32":28,"_30":31,"_128":-5,"_41":42,"_40":14,"_129":25,"_38":154,"_13":131,"_33":34,"_35":37,"_24":25,"_132":-5,"_155":156,"_27":157},["D",1714759281566],"children",[],[28],["D",1699666828547],[],[135],["D",1746037428632],{"_95":94,"_102":98},{"_95":94,"_96":-5,"_97":98,"_18":55,"_99":100,"_101":25},{"_13":84,"_32":85,"_43":42,"_86":44,"_87":-5,"_88":-5,"_89":-5,"_90":-5,"_91":-5,"_92":45,"_93":94},"ctx",{"_77":-5,"_122":198,"_199":200,"_201":202,"_203":25,"_204":25,"_205":25,"_206":49,"_207":-5,"_208":-7,"_209":-7,"_210":139,"_211":25,"_212":25,"_213":-5,"_214":25,"_215":25,"_216":25,"_217":-5},"ENV",{"_169":170,"_171":172,"_173":85,"_174":175,"_176":177,"_178":179,"_180":181,"_182":183,"_184":185,"_186":187,"_188":189,"_190":191,"_192":193,"_194":195,"_196":197},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","fdb67791413f4386b4dbf18f354029a617f6160f","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"]

Diff · v20