Julian Descottes dfb8d25b1d Bug 1750446 - [devtools] Wait for the proper mutation in browser_rules_custom.js r=nchevobbe
We usually need three mutations to reach the final state of addProperty and usually the 2nd and 3rd come in the same batch.
Meaning that simply waiting for receivedMutations >= 2 works in most cases.

But the intermittent screenshots show that the markup view was not updated yet with the correct content meaning it either didn't receive or processed the last
mutation.
Let's try to wait for the proper mutation instead of using an arbitrary number. Hopefully this fixes it.

Differential Revision: https://phabricator.services.mozilla.com/D144181
2022-04-22 08:17:02 +00:00
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