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Re: WCAG 2.0 SC 1.4.4 - Text Zoom Vs Browser Zoom

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From: Denis Boudreau
Date: Sep 16, 2014 9:35AM

Hi Rakesh,

I think it boils down to three important things:

1. Most users would probably struggle more with the lack of word wrapping in browser zoom, than they would with images not scaling up in text resize.
2. Users could still do a combination of both text resizing and browser zoom, and bump the size of images up, if they really wanted to. Pixelation is unavoidable.
3. SC 1.4.4 basically says that browser zoom is sufficient to comply, which I still think is a mistake and creates a huge disservice to low vision users.

Over a year later, I still stand by the blog post Karl mentioned a few minutes ago. Except for the caveat brought up by Alastair on Responsive websites.

/Denis


On Sep 16, 2014, at 11:05 AM, Karl Groves < <EMAIL REMOVED> > wrote:

> Rakesh,
>
> You might want to take a look at prior conversations on this list and
> the WAI-IG list, as I recall two pretty informative discussions on
> this topic.
>
> Also, this comprehensive post by Denis Boudreau
> http://www.denisboudreau.org/blog/2013/07/why-browser-zoom-testing-sucks-for-accessibility/
>
>
> On Tue, Sep 16, 2014 at 4:24 AM, Rakesh P < <EMAIL REMOVED> > wrote:
>> Dear All,
>>
>> We have a web application where content on the site is getting
>> restructured if we use global zoom to magnify the content.
>> In one of the page, there is a chart image with image hot spots
>> (functional links) as indicator of some chart value. When we do global
>> zoom, the entire chart (with image hot shots) is getting re-sized and
>> no distortion is happening. But with Text Zoom (using Text Zoom option
>> in Firefox browser), only the text is re-sizing and not the chart
>> image, so the position of image hot spots are getting distorted and
>> this will definitely create some difficulty for user using text zoom
>> (low vision user).
>> As per WCAG SC 1.4.4 (Text Re-size), the content of the page should
>> not be clipped, truncated or obscured with 200% Text Zoom.
>> We want to understand, in a scenario like this, where Global Zoom is
>> handled efficiently and doesn't cause any loss of information or
>> horizontal scroll, is it really required to handle distortion caused
>> by browser text zoom? Is the global zoom a sufficient way to execute
>> and test S.C 1.4.4?
>>
>> Thanks & Regards
>> Rakesh Paladugula
>> >> >> >
>
>
> --
>
> Karl Groves
> www.karlgroves.com
> @karlgroves
> http://www.linkedin.com/in/karlgroves
> Phone: +1 410.541.6829
>
> Modern Web Toolsets and Accessibility
> https://www.youtube.com/watch?v=_uq6Db47-Ks
>
> www.tenon.io
> > >