[Webkit-unassigned] [Bug 210093] New: [css-flexbox] select element incorrectly allows itself to shrink to a main-size of 0, in a flex container

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=210093

            Bug ID: 210093
           Summary: [css-flexbox] select element incorrectly allows itself
                    to shrink to a main-size of 0, in a flex container
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: clopez at igalia.com

Steps to reproduce:

Put select element inside flexbox and apply some "pressure":
https://jsfiddle.net/Risord/dvky8w4m/4/

Actual results:
Select will be collapsed all the way zero height (in demo there is a bit more space so that select is easier to see).

Expected results:
Select should keep it's "obvious" height just like the div (and other form inputs etc.). Chrome and Edge also handle select correct way.


This very same issue has been reported (and fixed) on firefox at : https://bugzilla.mozilla.org/show_bug.cgi?id=1591925
Chrome doesn't have this issue.

This is tested by the following WPT tests (that fail on WebKit):

https://wpt.live/css/css-flexbox/select-element-zero-height-001.html
https://wpt.live/css/css-flexbox/select-element-zero-height-002.html

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