View MR changes - Couldn't load some or all of the changes.

Encountered a bug when seeing changes in MR.

Prereq. Certain content in MR in combination with one file at a time when seeing changes.

In console and network seeing 404 on the url diff_for_path.json.

Failing case contains diff in .ts and .html files.

Workaround is removing the following checkbox in a MR that works

Haven't been able to isolate the problem further and seems similar to but not the same as: #366408