A copy of Gitlab::RequestProfiler::Middleware has been removed from the module tree but is still active!
I used Chrome's ModHeader extension to turn on and off profiling by adding the X-Profile-Token
to my browser settings.
If I turn on profiling, everything works as intended.
Then I turn off profiling by changing the headers and surf.
If I turn on profiling again, I get:
The only way to recover seems to restart the GDK, which also resets the profile token.
/cc: @ahmadsherif