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From: Steve Green
Date: Tue, Apr 18 2023 6:22AM
Subject: WCAG SC 1.4.10 (Reflow) and browser window height
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I am testing a website that contains a date picker that remains in the same position on screen when the page is scrolled. At 400% zoom the whole of the date picker is visible in a 1080px high window. However, on monitors that are less high, the last row of dates is not visible and there is no way to get to them.

The SC doesn't say anything about window height, so this does not appear to be a non-conformance. Am I missing something?

Regards,
Steve Green
Managing Director
Test Partners Ltd
020 3002 4176 (direct)
0800 612 2780 (switchboard)
07957 246 276 (mobile)
020 7692 5517 (fax)
Skype: testpartners
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www.testpartners.co.uk
 
Connect to me on LinkedIn - http://uk.linkedin.com/in/stevegreen2

From: Patrick H. Lauke
Date: Tue, Apr 18 2023 6:29AM
Subject: Re: WCAG SC 1.4.10 (Reflow) and browser window height
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1.4.10 Reflow is scoped very explicitly to a specific CSS pixel size of
viewport (to its detriment, but that's a different conversation perhaps;
also, it's inadequate in this definition because it doesn't take into
account browser chrome, Windows taskbar, etc...). So purely from a
normative point of view, I *think* you can only make a pass/fail
statement at those specific viewport dimensions (something I've railed
against for a good while). I would note this problem as a best practice
(a la "while nominally this probably passes, in practice users will be
affected...")

P
--
Patrick H. Lauke

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------ Original Message ------
From "Steve Green" < = EMAIL ADDRESS REMOVED = >
To " = EMAIL ADDRESS REMOVED = " < = EMAIL ADDRESS REMOVED = >
Date 18/04/2023 13:22:12
Subject [WebAIM] WCAG SC 1.4.10 (Reflow) and browser window height

>I am testing a website that contains a date picker that remains in the same position on screen when the page is scrolled. At 400% zoom the whole of the date picker is visible in a 1080px high window. However, on monitors that are less high, the last row of dates is not visible and there is no way to get to them.
>
>The SC doesn't say anything about window height, so this does not appear to be a non-conformance. Am I missing something?
>
>Regards,
>Steve Green
>Managing Director
>Test Partners Ltd
>020 3002 4176 (direct)
>0800 612 2780 (switchboard)
>07957 246 276 (mobile)
>020 7692 5517 (fax)
>Skype: testpartners
> = EMAIL ADDRESS REMOVED =
>www.testpartners.co.uk
>
>Connect to me on LinkedIn - http://uk.linkedin.com/in/stevegreen2
>
>>>>

From: Steve Green
Date: Tue, Apr 18 2023 6:40AM
Subject: Re: WCAG SC 1.4.10 (Reflow) and browser window height
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Thanks for confirming my thoughts. I believe that some people do this test at 100% zoom in a 320px wide window. If you do that (which I don't think you should), the date picker is only a small fraction of the window height on any desktop machine so you would be unaware of the issue.

Steve