Cope with null document #19
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This can happen in unit tests, especially when using Jest with jsdom.
You may get warnings like:
Cannot log after tests are done. Did you forget to wait for something async in your test?
Attempted to log "Error: Uncaught [TypeError: Cannot read property 'documentElement' of null]
If we check for the existence of the document first, we can tidy up our
test output.
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This can happen in unit tests, especially when using Jest with jsdom.
You may get warnings like:
If we check for the existence of the document first, we can tidy up our test output.