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ExtJS4 IE Resize on Zoom

Here's an easy way to break zoom in and out capability in IE7+ in your ExtJS4 application:

There's a <meta> tag (the ones that go into <head>) that was recommended to me for the sake of reducing IE testing efforts:

<meta http-equiv="X-UA-Compatible" content="IE=8"/>

The idea here is it forces many IEs to act all in IE8 mode, so you can basically do quick tests in just IE8 and still get a good test coverage. However, it took me some effort to figure out that this breaks re-sizing capability of a Viewport on zoom in IE.

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  1. There’s also a thread pending on Sencha’s forum for about a month now regarding their recommendation in regards to the meta tag:


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  2. I am having same issue in firefox 4 using extjs 3.1. Any suggestion will be really helpful.

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