Disable javascript warning popup

I agree.

Following Steve Flowers suggestion above, we've added logic to all of our courses to ignore Javascript on slides whenever a variable is flagged (PublishMode is what we call it). It requires all developers to follow a specific convention that we have to teach, but it gets the job done. Since all of our courses use a javascript instrumentation library, music library, and other javascript-based tools, it's the only way to test the courses without significant friction. Without this convention, each slide would prompt developers multiple times during testing. 

A simple systemwide setting to turn the alert off would eliminate this additional organizational burden for us. The alert is a "feature" that was only useful the very first time it's ever used and does nothing except cause digital friction for the hundreds and thousands of times it triggers afterwards for a course developer. 

A solve would be either a systemwide disable option (preferred) or a persistent non-interactive and non-intrusive banner on the test UI that says Javascript disabled for testing) if you're really concerned about people forgetting about it or need to communicate other things.