HTML5 Video - Removing Maximize button

Currently when viewing a video in iPad and using the controls i'm seeing the maximize button.. however I don't want this to be displayed. Is there an easy way to toggle this maximize button off?

video code:

<video width="309" controls="true" poster="bla.jpg">
     <source = "video.ogv">
     <source = "video.m4v">
<video>

I've removed the controls but that simply removes all the controls, where as I'm looking only to remove the maximize button which 开发者_如何学Cpresents itself.

Thank you

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No. Native controls are an all or nothing prospect.