[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10},"actionData","errors","root",{"_164":165,"_166":167},"routes/_app.x.$handle.$name",{"_94":93,"_32":45,"_102":84,"_27":103,"_13":14,"_104":-5,"_11":105,"_106":107,"_108":109,"_110":111,"_112":113,"_20":-5,"_114":-5,"_115":-5,"_116":25,"_117":118,"_119":49,"_120":-5,"_121":-5,"_122":123},"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",46,"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\";\nimport react_http from \"https://esm.town/v/stevekrouse/react_http?v=3\";\n\nconst BASE_URL = \"https://stevekrouse-cors_example_backend.web.val.run\";\n\nexport function App() {\n const [logs, setLogs] = useState([]);\n async function request(url, options) {\n try {\n const response = await fetch(url, options);\n const status = response.status;\n const data = await response.text();\n const headers = Array.from(response.headers.entries())\n .map(([key, value]) => `${key}: ${value}`)\n .join('\\n');\n setLogs([...logs, `${options?.method || \"GET\"} ${url} [${status}]\\nHeaders:\\n${headers}\\nBody:\\n${data}`]);\n } catch (error) {\n setLogs([...logs, `${options?.method || \"GET\"} ${url} ${error}`]);\n }\n }\n return (\n

CORS Example

\n \n \n \n \n \n \n

Logs

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

\n );\n}\n\nexport default react_http(App, import.meta.url);","/** @jsxImportSource https://esm.sh/react@18.2.0 */\nimport { useState } from \"https://esm.sh/react@18.2.0\";\nimport react_http from \"https://esm.town/v/stevekrouse/react_http?v=3\";\n\nconst BASE_URL = \"https://stevekrouse-cors_example_backend.web.val.run\";\n\nexport function App() {\n const [logs, setLogs] = useState([]);\n async function request(url, options) {\n try {\n const response = await fetch(url, options);\n const status = response.status;\n const data = await response.text();\n const headers = Array.from(response.headers.entries())\n .map(([key, value]) => `${key}: ${value}`)\n .join(\"\\n\");\n setLogs([...logs, `${options?.method || \"GET\"} ${url} [${status}]\\nHeaders:\\n${headers}\\nBody:\\n${data}`]);\n } catch (error) {\n setLogs([...logs, `${options?.method || \"GET\"} ${url} ${error}`]);\n }\n }\n return (\n

CORS Example

\n \n \n \n \n \n \n

Logs

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

\n );\n}\n\nexport default react_http(App, import.meta.url);","createdAt",["D",1733504919780],"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",{"_94":93,"_101":97},"org",{"_94":93,"_95":-5,"_96":97,"_18":55,"_98":99,"_100":25},"branch",{"_13":14,"_32":84,"_43":42,"_85":44,"_86":-5,"_87":-5,"_88":-5,"_89":-5,"_90":-5,"_91":45,"_92":93},"isOwned","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":160,"_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":161,"_79":162,"_81":163,"_83":25},"tree",[151,152],"files",[151,152],"counts",{"_141":138,"_142":136,"_143":61,"_144":145,"_146":147},"contents",[124,125],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_43":133,"_32":134,"_30":135,"_127":-5,"_41":42,"_40":136,"_128":49,"_38":137,"_13":138,"_33":20,"_35":139,"_24":25,"_131":-5,"_27":140},{"_43":126,"_32":28,"_30":31,"_127":-5,"_41":42,"_40":14,"_128":49,"_38":129,"_13":130,"_33":34,"_35":37,"_24":25,"_131":-5,"_27":132},"43224bf6-25f0-11f0-ad23-569c3dd06744","parentId","latest",["D",1733504919780],45,"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. 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Diff · v46