On the server side, when an editor requests a review, the data is published on the «preview» endpoint in order to test the changes in a real browser. On the client side, in order to switch to the preview environment a preference has to be changed and the browser restarted. See https://remote-settings.readthedocs.io/en/latest/frequently-asked-questions.html#how-do-i-preview-the-changes-before-approving It would be nice if about:remotesettings would allow to switch from/to this preview endpoint, without restarting. The previous implementation in the original about:remotesettings  is broken and was not imported in Bug 1406036  https://github.com/leplatrem/aboutremotesettings
Pushed by email@example.com: https://hg.mozilla.org/integration/autoland/rev/90d22ac1a1eb Restartless preference change r=Gijs,glasserc
Is this something that can ride the trains?
Hi Ryan, Actually the flags are not entirely correct. It's a new feature that we'll land in 64, it does not affect 63 and we should not bother backporting it. Sorry for the trouble :|
Attachment #8998572 - Attachment filename: file_1475487.txt → phabricator-D2951-url.txt
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