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<body><span class="vcard"><a class="email" href="mailto:wenson_hsieh@apple.com" title="Wenson Hsieh <wenson_hsieh@apple.com>"> <span class="fn">Wenson Hsieh</span></a>
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<a class="bz_bug_link
bz_status_NEW "
title="NEW - Excessive zoom applied to Bootstrap v3 modal (new iOS 9 breakage)"
href="https://bugs.webkit.org/show_bug.cgi?id=150715">bug 150715</a>
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<td>wenson_hsieh@apple.com
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Excessive zoom applied to Bootstrap v3 modal (new iOS 9 breakage)"
href="https://bugs.webkit.org/show_bug.cgi?id=150715#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Excessive zoom applied to Bootstrap v3 modal (new iOS 9 breakage)"
href="https://bugs.webkit.org/show_bug.cgi?id=150715">bug 150715</a>
from <span class="vcard"><a class="email" href="mailto:wenson_hsieh@apple.com" title="Wenson Hsieh <wenson_hsieh@apple.com>"> <span class="fn">Wenson Hsieh</span></a>
</span></b>
<pre>Similar to <<a href="http://wkbug.com/146244">http://wkbug.com/146244</a>>, this is related to how the <body> height is being computed as a very small value. This can be verified in jsbin test case by putting height: 100vh on the <body> and seeing that the excessive zoom doesn't occur.
It would be useful to know what heights Chrome and Firefox on mobile compute for the <body> element. On desktop, Safari, Chrome and Firefox all compute the body height to be about 46px, so I would guess it's the same for mobile, but it would definitely be good to double check.
I suppose a temporary workaround for both this issue and <<a href="http://wkbug.com/146244">http://wkbug.com/146244</a>> is forcing the body element to cover the page, but for an actual fix, we need to know whether having a tiny/very short <body> is something we should support. If not, we need to figure out what's causing us to compute body height to be such a small value; otherwise, we'll need to adjust the way we handle various iOS-specific behaviors (e.g. zooming and input assistance) to do the right thing even when the body element is tiny.</pre>
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