[console error] unexpected javascript error from running app

[dzaki236]

DartPad displayed an unexpected error in the console:

Uncaught ReferenceError: dartDevEmbedder is not defined, error: ReferenceError: dartDevEmbedder is not defined
Uncaught Library not defined: dart:_runtime. Failed to initialize., error: Library not defined: dart:_runtime. Failed to initialize.

[devoncarew]

Thanks for the report! This was likely addressed by #3313.