Uploded image gets inverted on Instagram.com

[cr1ptal]

Hello,
I use Firefox 150.0.1 on Linux Mint Vera.
When I disable Canvas add-on, image upload is OK on instagram.com.
When Canvas is enabled, after upload, the images are posted reverted (180°).
Could you look into this bug please ?

5c

[kkapsner]

I'm not able to create an account... does whitelisting specific APIs help?

[cr1ptal]

when turning off CanvasBlocker, everyting is fine.

…

On Thursday, May 21st, 2026 at 9:52 PM, kkapsner ***@***.***> wrote: kkapsner left a comment [(kkapsner/CanvasBlocker#798)](#798 (comment)) I'm not able to create an account... does whitelisting specific APIs help? — Reply to this email directly, [view it on GitHub](#798 (comment)), or [unsubscribe](https://github.com/notifications/unsubscribe-auth/AODCBYNADPFYUIASMZCSGQL435M73AVCNFSM6AAAAACYLTGS7SVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHM2DKMJSGI2DKNBWGI). Triage notifications on the go with GitHub Mobile for [iOS](https://apps.apple.com/app/apple-store/id1477376905) or [Android](https://play.google.com/store/apps/details?id=com.github.android). You are receiving this because you authored the thread.Message ID: ***@***.***>