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how can i make msedge in --app mode doesn't rember window size

samaliy li 66 Reputation points
2022-03-28T09:04:04.063+00:00

In my c# program,I use System.Process to open msedge.exe with in app mode.I used --window-size to control the msedge window's size.However,when i open an new site in the mainwindow by the window.open function,the childwindow is the same as the mainwindow's size. Even I set the size for the childwindow,it doesn't work.
Why the childwindow be the same with the maniwindow?

The detail like the follow:
1.In C# ,open msedge.exe in app mode
string arg = " --window-position=10,10 --window-size=300,300 " + "--app" + "=" + "http://XXXX/sample.jsp"
process.StartInfo.FileName = "C:/Program Files (x86)/Microsoft/Edge/Application/msedge.exe";
・・・
process.StartInfo.Arguments = arg;
process.Start();

2.In sample.jsp page,I excute the follow to open a new site.
window.open('" + XXXX+ "','" + windowName + "','toolbar=no,scrollbars=no,location=no,status=no,menubar=no,resizable=no,left=0,top=0,width=100,height=100')

3.The new childwindow is always same with the sample.jsp window's size.

Is there anyway to solve this problem? How can I contorl the childwindow's size that isn't be same to the mainwindow.

Best Regards

Microsoft Edge
Microsoft Edge
A Microsoft cross-platform web browser that provides privacy, learning, and accessibility tools.
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  1. Yu Zhou-MSFT 12,461 Reputation points Microsoft Vendor
    2022-03-29T09:35:50.16+00:00

    Hi @samaliy li

    I can reproduce the issue. It looks like in app mode, if you add the --window-size argument, it will be applied to every window opened from it. I think that's by design in Edge browser.

    AFAIK, there's no workaround to change it unless you don't configure the --window-size argument when open Edge in app mode. I suggest that you can provide feedback about this to Edge team by pressing Alt+Shift+I in Edge. Edge team will check the feedbacks and improve the product continuously. Thanks for your understading.

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    Regards,
    Yu Zhou