ActivityPub C2S: Images upload bug: Pleroma cannot parse its own JSON image object
In #1171 ActivityPub C2S: How to upload images? we implemented images upload.
Unfortunately that implementation has a bug that prevents the Activity/Note with an image from showing on the Pleroma's web site: Pleroma server returns to a client app JSON object of the uploaded image, but later cannot parse properly its own format.
I could successfully upload an image to Pleroma's site, posted an Activity with the attachement, but the activity never appeared on the Pleroma site. @lanodan confirmed the bug at Pleroma side
More details are here and below: #1171 (comment 45398)