I upgraded my Discourse instance recently to the latest code, and have noticed that I can now zoom in mobile Safari. I also upgraded to iOS10, so it may relate to an iOS change and not a Discourse change.
This wouldn’t be a problem in itself, but I’m finding that Discourse is now regularly showing a subtly wrong zoom level, which truncates content on the right-hand side of the UI. Very problematic. Not all users will know to zoom out again.
This wrong zoom problem occurs when opening a compose window and then persists until I zoom manually back out again:
Looks like there was a change in iOS10 beta 1 that meant Safari stopped respecting the user-scalable=no meta tag, although it was reverted back to the iOS9 behaviour in iOS10 beta 6, according to this:
Hope everyone agrees - regardless of the specifics, we’ve got a serious new usability problem here for Discourse. As I type this reply, my cursor and text just went offscreen in the compose box.
iOS 10 uptake will be rapid, as all iPhone software updates are. Most of the mobile users on my forum instance are on iOS - as I’m sure is the case on other forums.
I think the first step might be to examine why the compose window causes the browser to partially zoom in. If we can’t prevent the user zooming, we need to at least present a UI that doesn’t mess up the zoom level itself.
I won’t be able to try this until my iPhone 7 arrives on Friday. I upgrade my OS like a real Apple user: I throw my old device in the trash and buy a new one.
