fix(frames): make sure evaluation does not hang in detached iframes #3770
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Node.js is very unhappy when there's a rejected promise that is not caught by the end of the task - it throws an 'unhandled promise rejection'. Instead of storing a rejected promise, throw explicitly when trying to fetch execution context for detached frame.
JoelEinbinder
approved these changes
Jan 15, 2019
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Fix #3261