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2026-07-13 12:22:33 +08:00

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---
summary: "WebKit usage in CodexBar: WebView hosts, cookie stores, and teardown guidance."
read_when:
- Touching WebKit-backed login windows or offscreen scraping
- Debugging WebKit teardown crashes (especially x86_64)
- Changing WebKit window lifecycle behavior
---
# WebKit usage
CodexBar uses WebKit in two places:
- Visible login/purchase windows (e.g. Cursor login, credits purchase).
- Offscreen WebViews for OpenAI dashboard scraping.
## Teardown helper
Use `WebKitTeardown` whenever a `WKWebView` + `NSWindow` should be torn down or hidden.
It centralizes Intel-friendly cleanup:
- Stops loading and clears delegates.
- Delays teardown so WebKit can unwind callbacks.
- Keeps owners retained briefly on x86_64 to avoid autorelease crashes.
## When to use
- Any WebKit window that closes after a flow (login, purchase, etc.).
- Offscreen WebView hosts that hide/close after scraping.
## Notes
- For login flows that persist cookies manually, prefer `WKWebsiteDataStore.nonPersistent()`.
- Keep window `isReleasedWhenClosed = false` when teardown is deferred.
- Avoid closing WebViews directly; route cleanup through the helper.