feat(AU-2073): Trigger track event when iframe fails on load

[Rodra]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.83%. Comparing base (9437142) to head (e839f1e).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1407   +/-   ##
=======================================
  Coverage   88.83%   88.83%           
=======================================
  Files         307      307           
  Lines        5267     5268    +1     
  Branches     1338     1338           
=======================================
+ Hits         4679     4680    +1     
  Misses        572      572           
  Partials       16       16           

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[nsprenkle]

Strictly speaking, you don't need the courseId here since course ID is part of the unit ID:

xblock-v1:{course_id}{block_id}