Sorry for the slightly off-topic question: which of the details about the browser and operating system were really needed to reproduce this?
I thought that mentioning “tablet” in the first post should have been enough to indicate that it’s a touchscreen device. And the fact that it happens in both Chrome and Firefox makes the browser information less relevant.
So that next time I can enter all the important details right away without mentioning too much irrelevant information, what else besides “tablet” should I have definitely mentioned?