Using the steps in https://bugzilla.mozilla.org/show_bug.cgi?id=1658571#c74, I was able to bisect this down to the following changeset: o changeset: 529112:a7541ff8e630 | user: Honza Bambas <honzab.moz@firemni.cz> | date: Mon May 11 14:07:24 2020 +0000 | summary: Bug 1618292 - Make ScriptLoadRequest derive and use PreloaderBase to support new preload as speculative load feature, r=smaug
Bug 1658571 Comment 83 Edit History
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Using the steps in https://bugzilla.mozilla.org/show_bug.cgi?id=1658571#c74, I was able to bisect this down to the following changeset: o changeset: 529112:a7541ff8e630 | date: Mon May 11 14:07:24 2020 +0000 | summary: Bug 1618292 - Make ScriptLoadRequest derive and use PreloaderBase to support new preload as speculative load feature, r=smaug