Twitter header style recalc

By design Issue #8482694

Details

Created
Aug 13, 2016
Privacy
This issue is public.
Reports
Reported by 1 person

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Steps to reproduce

https://youtu.be/Y8z8I7ouxU0

Go to a twitter profile: https://twitter.com/gregwhitworth
Wait a second

Expected: Banner image stays the correct height

Actual: Height adjusts a few hundred milliseconds in

CHROME: No Repro
FF: No Repro
Edge: Repro
IE11: No Repro

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    Comments and activity

    • Microsoft Edge Team

      Changed Title from “@SampsonMSFT I'm having a weird issue with Twitter on the latest Insider Build, 14901. Here's a video: #EdgeBug” to “Twitter header collapses”

    • Here are more details in this thread from the user: https://twitter.com/evil_pro_/status/764278551608758272

    • Microsoft Edge Team

      Changed Steps to Reproduce

      Changed Title from “Twitter header collapses” to “Twitter header style recalc”

      Changed Assigned To to “Greg W.”

      Changed Status to “Needs root cause”

    • This is reproducible in the Anniversary Update as well. Just go to a profile page: eg: https://twitter.com/gregwhitworth and wait a second and you’ll see the banner image change sizes. It’s as though something is invalidating the styles for some reason, but we’ll need to fully reduce it to understand why. If I provide the Chrome UA string this does no repro so this means we are being served slightly different content. I’ll reach out to the OP and see if this repros for them as well.

    • The issue seen in the YouTube video is caused by Caret Browsing (F7). When Caret Browsing is enabled, clicking in the right-side of the page will cause a cursor to be placed, the viewport to be scrolled. Disabling Caret Browsing resolves this behavior.

    • I can confirm that disabling Caret Browsing (which I didn’t know I had enabled) fixed the issue. Thanks to both of you for your help.

    • Microsoft Edge Team

      Changed Status from “Needs root cause” to “By design”

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