blinkagent[bot] 67f5494665 fix(site): allow microphone access for Web Speech API on agents page (#23046)
## Problem

The `/agents` page has a voice input feature that uses the Web Speech
API (`webkitSpeechRecognition`), but clicking the mic button always
results in a `"not-allowed"` error — even when the browser has
microphone permission granted.

## Root Cause

The `secureHeaders()` function in `site/site.go` sets a
`Permissions-Policy` header with `microphone=()`, which completely
disables microphone access for the page at the HTTP level. This
overrides any browser-level mic permission grants and causes the Web
Speech API to immediately fire an `onerror` event with `error:
"not-allowed"`.

## Fix

Change `microphone=()` to `microphone=(self)`, which:
- Allows the Coder origin itself to use the microphone (enabling the Web
Speech API voice input)
- Still blocks cross-origin iframes from accessing the microphone

This is the minimal permission change needed — `(self)` is more
restrictive than removing the policy entirely, maintaining the security
intent of the original header.

## Testing

1. Navigate to `/agents`
2. Click the mic button in the chat input
3. Verify voice input works (browser will prompt for mic permission if
not already granted)
4. Verify `Permissions-Policy` response header now shows
`microphone=(self)` instead of `microphone=()`

---------

Co-authored-by: blink-so[bot] <211532188+blink-so[bot]@users.noreply.github.com>
2026-03-13 14:02:38 -04:00
2022-04-04 11:55:06 -05:00

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