Issue with Editor crashing when encountering .ico favicon file #9785

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1. Frostist

   added

   bugSomething isn't workingSomething isn't working

   on Jan 21, 2026
2. github-actions

   assigned

   rekram1-node

   on Jan 21, 2026
3. github-actions commented on Jan 21, 2026

   

   github-actionsBot

   on Jan 21, 2026 – with GitHub Actions

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   This issue might be a duplicate of existing issues. Please check:

   • Reading .fbs files fails with "Unsupported image mime type: image/vnd.fastbidsheet" #9210: Reading .fbs files fails with "Unsupported image mime type: image/vnd.fastbidsheet" — similar issue where non-standard image file types are being treated as images and rejected
   • SVG File Paths Rejected #4052: SVG File Paths Rejected — related problem where non-standard image formats (.svg) are rejected with the same media type validation error
   • Trying to read an invalid image file bricks the session #9512: Trying to read an invalid image file bricks the session — when invalid image files are encountered, the session becomes unrecoverable

   All these issues stem from the same root cause: OpenCode attempts to process certain file types as images when they shouldn't be, resulting in media type validation errors ('image/jpeg', 'image/png', 'image/gif' or 'image/webp' are the only supported formats).

   Feel free to ignore if your specific case differs from these existing issues.

   👍React with 👍1Reacted by Frostist
4. github-actions commented on Mar 28, 2026

   

   github-actionsBot

   on Mar 28, 2026 – with GitHub Actions

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   To stay organized issues are automatically closed after 90 days of no activity. If the issue is still relevant please open a new one.
5. github-actions

   closed this as completedon Mar 28, 2026
6. kozak-codes

   added a commit that references this issue on Mar 28, 2026

   fix(session): sanitize image attachments before sending to API

   ...

   cd69363