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Open select dropdown flickers when "selectedIndex" property is set
Reported by
jcar...@stainlesscode.com,
Dec 12 2016
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Issue descriptionUserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.79 Safari/537.36 Edge/14.14393 Steps to reproduce the problem: 1. Go to this URL: https://jsfiddle.net/845w541n/12/ 2. Open the select dropdown in the "preview" pane 3. Watch the flicker What is the expected behavior? When you open the dropdown, it shouldn't flicker, even thought "selectedIndex" is being set. What went wrong? When you open the dropdown, it flickers because "selectedIndex" is being set. Did this work before? Yes 49.0.2623.87 Does this work in other browsers? Yes Chrome version: 55.0.2883.87 Channel: stable OS Version: 10.11.6 Flash Version: 23.0.0.207 - According to our client (end-user) This DOES NOT happen on 49.0.2623.87 OSX, but DOES happen on 53.0.2785.143 OSX. - We (web developers) have confirmed it DOES happen on 55.0.2883.87 OSX. - We have confirmed this DOES NOT happen on Chrome on Windows (55.0.2883.87), Edge & Opera on Windows, nor Firefox on OSX.
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Dec 12 2016
You are probably looking for a change made after 392952 (known good), but no later than 392967 (first known bad). CHANGELOG URL: https://chromium.googlesource.com/chromium/src/+log/3e302bd544e4ac9ac1b119424a5b4d100340c70b..22863bca75277a5abce27fe961680e73171bb462 Probably https://chromium.googlesource.com/chromium/src/+/1d5b6507ac2cbfdbb733cbefa1dbbce091b11a06. This would have first gone bad in 52.0.2733.0.
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Dec 14 2016
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Dec 14 2016
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/abc1c2f1d368e085dd3556f45c0fb861965abc75 commit abc1c2f1d368e085dd3556f45c0fb861965abc75 Author: tkent <tkent@chromium.org> Date: Wed Dec 14 08:22:17 2016 SELECT element: Do not update popup menu content by touching selectedIndex * HTMLSelectElement::selectOption Calls PopupMenu::updateFromElement() only if OPTION selection state was changed. BUG= 673446 Review-Url: https://codereview.chromium.org/2572953002 Cr-Commit-Position: refs/heads/master@{#438461} [modify] https://crrev.com/abc1c2f1d368e085dd3556f45c0fb861965abc75/third_party/WebKit/Source/core/html/HTMLSelectElement.cpp [modify] https://crrev.com/abc1c2f1d368e085dd3556f45c0fb861965abc75/third_party/WebKit/Source/core/html/HTMLSelectElement.h
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Dec 14 2016
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Comment 1 by jcar...@stainlesscode.com
, Dec 12 2016