Does Edge's IE compatibility mode also support the "channelmode" property of

Archer 21 Reputation points

I need to open a maximized new window when making a website, but the window opened with "channelmode=yes" of in Edge's IE compatibility mode is not a maximized window.
The size of the window is the same as the window opened without "channelmode=yes". Does Edge's IE compatibility mode do not support the "channelmode" attribute of Was it not supported at the beginning or was it not supported at the beginning of a certain version?

Microsoft Edge
Microsoft Edge
A Microsoft cross-platform web browser that provides privacy, learning, and accessibility tools.
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  1. XuDong Peng-MSFT 10,186 Reputation points Microsoft Vendor

    Hi @Archer ,

    According to your description, I test the function with channelmode. But the result I got is different from yours. The window opened in IE-mode is larger than the normal running Edge, although it is still not in full screen state. Therefore, I think it actually supports channelmode when using Edge-IE-mode, but the effect is not very satisfactory.

    If you need to maximize the opened window, you can use javascript to achieve a similar function, like this:

    var params = [  
            'height=' + screen.height,  
            'width=' + screen.width,  
     var popup ='', 'popup_window', params);  
     popup.moveTo(0, 0);  

    Hope this can help.

    Best regards,
    Xudong Peng

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