1930463 - xcancel.com - Embedded videos return an MIME type error message swith ETP set to STRICT

Status: RESOLVED INVALID

(Web Compatibility :: Privacy: Site Reports, defect, P3)

Description

[Raul Bucata]

Attachment: STANDARD vs STRICT

Environment:
Operating system: Windows 10
Firefox version: Firefox 128.4.0 (esr)

Preconditions:

• ETP set to STRICT
• Clean profile

Steps to reproduce:

1. Navigate to: https://xcancel.com/FunnyPicsDepot
2. Wait for the page to load
3. Locate a video from the feed and click on the "Play" button

Expected Behavior:
Video plays

Actual Behavior:
"No video with supported format and MIME type found" error displayed

Notes:

• Not reproducible with ETP STANDARD/turned OFF (both Normal and Private Browsing)
• Reproducible on the latest Nightly

---

Created from webcompat-user-report:d52f7326-453c-487b-8e60-b6549cf759f4

Comment 1

[Leander Schwarz]

X/Twitter (twimg.com) and its forms are on Disconnect's list of social media trackers we use for ETP strict, so they are blocked.

This is expected behavior, leaving open since this might be fixed by smartblock in the future.

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

Since nightly and release are affected, beta will likely be affected too.
For more information, please visit BugBot documentation.

Comment 3

[William Wen (:wwen)]

seems to work now, closing as INVALID.

note: don't think this was related to smartblock