[Webkit-unassigned] [Bug 233332] New: Dynamic type does not resize unless the page is reloaded

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=233332

            Bug ID: 233332
           Summary: Dynamic type does not resize unless the page is
                    reloaded
           Product: WebKit
           Version: Safari 15
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Accessibility
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ldebeasi at gmail.com
                CC: andresg_22 at apple.com,
                    webkit-bug-importer at group.apple.com

Created attachment 444723

  --> https://bugs.webkit.org/attachment.cgi?id=444723&action=review

Code reproduction

When increasing the font size using the accessibility settings on iOS, the font size on a webpage using dynamic type does not change unless there is a full page reload.

Steps to reproduce:

1. Open attached code reproduction on an iOS device.
2. Go to Settings > Accessibility > Display & Text Size > Larger Text.
3. Increase the font size.
4. Return to the browser.
5. Observe that the font size does not change.
6. Refresh the page.
7. Observe that the font size has changed.

Expected Behavior:

I would expect the text to scale without a full page reload.

Actual Behavior:

The text does not scale unless I perform a full page reload.

Other information:

- I can reproduce this on the iOS 15.2 developer beta

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