RESOLVED INVALID 163808
img with srcset with width descriptor has incorrect intrinsic size 
https://bugs.webkit.org/show_bug.cgi?id=163808
Summary img with srcset with width descriptor has incorrect intrinsic size
mitz
Reported 2016-10-21 13:47:50 PDT
To reproduce: navigate to the URL. Expected: the image to render at a width of 96 CSS pixels Actual: the image renders at a much bigger width
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Radar WebKit Bug Importer
Comment 1 2016-10-21 14:09:55 PDT
<rdar://problem/28896267>
Dean Jackson
Comment 2 2016-11-14 17:29:18 PST
According to the HTML specification: If the srcset attribute is present and has any image candidate strings using a width descriptor, the sizes attribute must also be present, and is a sizes attribute. The sizes attribute contributes the source size to the source set (if no source element was selected). https://html.spec.whatwg.org/multipage/embedded-content.html#attr-img-sizes However, the specification doesn't seem to say what we should do when we don't have a sizes attribute.
Dean Jackson
Comment 3 2016-11-14 17:30:07 PST
At the moment it seems we're using 100vw (or something like that).
Dean Jackson
Comment 4 2016-11-14 17:31:07 PST
Working URL: data:text/html,<img%20srcset="https://webkit.org/favicon.png%2096w"%20sizes="96px">
Dean Jackson
Comment 5 2016-11-14 17:32:56 PST
WebKit seems to do the same thing as Chrome in this error case.
Dean Jackson
Comment 6 2016-11-14 17:34:58 PST
As does Firefox.
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