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Publish the apple-app-site-association file for the iPhone app - #77
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The native iPhone app needs this file to use passkeys made on app.ftw.energy. It also lets a pairing code scanned with the camera open the app when it is installed; without the app, /p still opens the web app as before. Apple accepts the file only as JSON. The path has no extension, so _headers sets the type. A test holds the app ID, the /p path and the header together. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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| Status | Name | Latest Commit | Preview URL | Updated (UTC) |
|---|---|---|---|---|
| ✅ Deployment successful! View logs |
ftw-webapp | b8dcec1 | Commit Preview URL Branch Preview URL |
Oct 12 2026, 02:26 PM |
This was referenced Oct 12, 2026
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Problem
The native iPhone app (srcfl/ftw-app, M1) cannot use passkeys made on
app.ftw.energyuntil the domain names the app. Todayhttps://app.ftw.energy/.well-known/apple-app-site-associationreturns 404. Without the file, one passkey cannot open the same home on the web and in the app.Change
public/.well-known/apple-app-site-associationlistsL66M368PZ6.energy.ftw.appunder:webcredentials, for passkeys;applinks, for the path/ponly. A pairing code scanned with the iPhone camera opens the app when it is installed. Without the app,/popens the web app as before (_redirectsis unchanged).public/_headersserves the file asapplication/json. Apple accepts nothing else, and the path has no extension. Headers in_headersoverride the default type (Workers static assets: headers).tests/apple-app-site-association.test.tsholds the app ID, the/ppath and the header together. It also checks that_redirectsstill serves/p.Evidence
npm run verify: 105 test files passed, 1 skipped; 1061 tests passed, 1 skipped; the build passed.dist/.well-known/apple-app-site-association, anddist/_headerscarries the rule.curl -sI https://app.ftw.energy/.well-known/apple-app-site-associationshows200andcontent-type: application/json. Then check that Apple's CDN serves the file athttps://app-site-association.cdn-apple.com/a/v1/app.ftw.energy.Paired work
The app side is in srcfl/ftw-app (the M1 foundation PR, which replaces srcfl/ftw-app#5). It adds the Associated Domains entitlement
webcredentials:app.ftw.energyandapplinks:app.ftw.energy, and it pairs from an incoming/p#…link. This PR is harmless without that one; it can merge first.Manual step for Fredrik
Register the App ID
energy.ftw.appwith the Associated Domains capability under teamL66M368PZ6. Signing in to Xcode with automatic signing does this, or you can use the developer portal.The commit has no DCO sign-off. Fredrik signs off his own work.
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