Live Markdown Preview for Single File Editor doesn't work on personal projects, subgroups, or relative URL's

Description

Noticed on .com.

Screen_Shot_2021-08-23_at_8.37.55_AM

Investigation

Looking at this line of code, we never consider the following situations:

  • Project could be under the personal namespace
  • Group could be under a subgroup
  • GitLab instance could be in a relative URL