CSS Zoom support for mobile WebView

Issue #10946333 • Assigned to Steven K.


Chris M.
Feb 13, 2017
This issue is public.
Found in build #
Reported by 1 person

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Steps to reproduce

  • CSS zoom factor works properly on in Edge on my desktop/phone and also in a WebView on my desktop, but on my phone the zoom factor does nothing in a WebView. This is the RS1 build of Windows Mobile in the Release Preview insiders channel on mobile.

  • I tested in a WebView both with my own code as well as with this page: https://css-tricks.com/almanac/properties/z/zoom/

I’m unsure if it’s just disabled in WebView Mobile, if it’s already been fixed and it’s the version I’m using or what. I thought it might be something I have to implement myself, but that can’t be the case since it works in a desktop WebView. I need this style to work reliably across desktop/mobile in a WebView.

Does the feature get disabled on mobile if the device’s display settings have the content scaling set to something other than the default?

To be explicit, CSS transform: scale() works, but that is more like a zoom gesture rather than zoom factor which scales the content itself instead of the rendered view. It seems to tap into the same function Edge uses for its built in Zoom option (ctrl+scrollwheel).



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    • Microsoft Edge Team

      Changed Assigned To to “Brad E.”

      Changed Assigned To from “Brad E.” to “Steven K.”

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