I tried reverting the fix in bug 2033049 locally and it doesn't seem to stop the DoH errors, so I don't think this is the regressor. :bvandersloot do you have other ideas of what the cause might be?
Bug 2037133 Comment 5 Edit History
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I tried reverting the fix in bug 2033049 locally and it doesn't seem to stop the DoH errors, so I don't think this is the underlying cause. :bvandersloot do you have other ideas of what the cause might be?