Persistent "An internal error has occurred" / HTTP 403 Forbidden on Brave - Requires Refresh / Regenerate

Google AI Studio
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Hi Google AI Studio Team & Community,

I am experiencing a persistent issue in Google AI Studio on Brave where prompts repeatedly fail with:

> “An internal error has occurred” (Failed to generate content: permission denied)

### Behavior & Details:

  • **Environment:** Brave 1.93.129 Chromium: 151.0.7922.71 (64-bit) / Windows 10 22H2
  • **Tested on Firefox:** Does NOT occur in Firefox (works fine).
  • **Tested on Brave:** Occurs repeatedly in Brave with both **Shields ON** and **Shields OFF**.
  • **Workaround:** Clicking “Regenerate” sometimes works. If not, refreshing the page (via normal refresh or Ctrl+F5) temporarily clears the issue until it happens again.

Developer Tools shows HTTP 403 Forbidden on RPC POST requests to:

https://alkalimakersuite-pa.clients6.google.com/$rpc/google.internal.alkali.applications.makersuite.v1.MakerSuiteService/GenerateContent

with error body: [,[7,“The caller does not have permission”]].

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Please look into this Web UI session token lifecycle / refresh issue in Brave. Thank you!