# I cannot connect Mastodon AP

**URL:** https://meta.discourse.org/t/i-cannot-connect-mastodon-ap/398803
**Category:** Bug
**Tags:** activitypub
**Created:** [March 19, 2026, 12:48pm UTC](https://meta.discourse.org/t/i-cannot-connect-mastodon-ap/398803 "2026-03-19T12:48:19Z")
**Posts on this page:** 1
**Showing post:** 1

<div class="post-metadata">

### Author: ![roke\_julian\_lockhart](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/roke_julian_lockhart/32/540179_2.png) [@roke\_julian\_lockhart](https://meta.discourse.org/u/roke_julian_lockhart)
#### Post date: [March 19, 2026, 12:48pm UTC](https://meta.discourse.org/t/i-cannot-connect-mastodon-ap/398803/1 "2026-03-19T12:48:19Z")

</div>

When I attempt to connect to `//mastodon.social/oauth/authorize`, I observe:

> The requested scope is invalid, unknown, or malformed.

To demonstrate:

[![](https://global.discourse-cdn.com/meta/original/4X/6/1/2/6123f85e23d5af994892386bebb37863e4a1dfec.jpeg "A Screencast That Demonstrates That Discourse Meta Fails To Connect To Mastodon.Social") ](https://www.youtube.com/watch?v=kOiCQ4H63E8)

> ****
>
> > [@I cannot upload a GIF, for a non-descript error appears](https://meta.discourse.org/t/i-cannot-upload-a-gif-for-a-non-descript-error-appears/398808):
> >
> > For [meta.discourse.org/t/398803/1](https://meta.discourse.org/t/i-cannot-connect-mastodon-ap/398803/1), I attempted to upload an image/GIF file. However, Discourse returns a non-descript error, despite the file being 15 FPS, and \< 600 KiB: "response": { "status": 422, "statusText": "", "httpVersion": "HTTP/2", "content": { "mimeType": "application/json; charset=utf-8", "size": 63, "text": "{\"errors\":[\"Sorry, but your upload failed. Please try again.\"]}" }, "redirectURL": "", "headersSize": 438, "bodySize": 501 }, My Environmen…

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