Attaching video in the new issue view via drag and drop cause to be downloaded automatically when accessing the issue

Issue Summary

Attaching videos .mp4 in the comments via drag and drop to issues while using the new issue view cause to these videos be downloaded automatically when accessing the issue using Google Chrome in both old and new issue view.

Steps to Reproduce

1. Access an issue using new issue view
2. Start inserting a comment
3. Drag and drop a .mp4 video to this comment
4. Save the comment

Expected Results

Access the issue without the video being downloaded automatically

Actual Results

Access the issue using both old and new issue view, the video will be automatically downloaded.

Additional Information

Uploading via drag and drop in the old issue view

Cause to test	Test to perform	Outcome	Additional notes
Chrome\New issue view	Access issue with video attached	Didn't download
Chrome\Old issue view	Access issue with video attached	Didn't download
Firefox\New issue view	Access issue with video attached	Didn't download
Firefox\Old issue view	Access issue with video attached	Didn't download
Safari\New issue view	Access issue with video attached	Didn't download
Safari\Old issue view	Access issue with video attached	Didn't download

Uploading via drag and drop in the new issue view

Cause to test	Test to perform	Outcome	Additional notes
Chrome\New issue view	Access issue with video attached	Downloaded
Chrome\Old issue view	Access issue with video attached	Downloaded
Chrome Incognito mode\Old issue view	Access issue with video attached	Downloaded
Chrome Incognito mode\Old issue view	Access issue with video attached	Downloaded
Firefox\New issue view	Access issue with video attached	Didn't download
Firefox\Old issue view	Access issue with video attached	Didn't download
Safari\New issue view	Access issue with video attached	Didn't download
Safari\Old issue view	Access issue with video attached	Didn't download

Workaround

Upload the video using the old issue view. One of the easiest ways to achieve this is by appending the below string to the issue URL and then refresh the page:

?oldIssueView=true