Sorry about that. This might be tested already indirectly in the background image tests or the tests Mossop landed for the progress listener changes, it's safe to say that the zoom feature probably has the most extensive browser-chrome tests in the tree :)
Created attachment 370283
test
Sorry about that. This might be tested already indirectly in the background image tests or the tests Mossop landed for the progress listener changes, it's safe to say that the zoom feature probably has the most extensive browser-chrome tests in the tree :)