Unable to access ERPnext in IE11

We’re currently testing ERPnext in China and for some reason, it’s not loading on a desktop computer but on the same WiFi network on a mobile phone it has no problems. It hangs at the login page without showing the section where it lets you enter the login ID and password. Has anyone encountered this issue?

Did you try different browsers on the desktop computer?

Are there specific browsers that ERPnext has been tested on approved to be functional?

Chrome, Firefox, Edge give the best performance. You shouldn’t be using Internet Explorer.

Block access to google-analytics.com domain and try afterwards.

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Also it would be useful to see the log from network monitor (Ctrl+Shift+E in Firefox)

Yes, I can confirm that firefox, edge and chrome works fine, but IE11 does not work.
on android mobile phone, the IE based browser does not work also, but Chrome or the wechat embedded browser work fine!

IE11 was definitely working before, but I tried it now and here is console log:

HTML1300: Navigation occurred.
File: login
DOM7011: The code on this page disabled back and forward caching. For more information, see: http://go.microsoft.com/fwlink/?LinkID=291337
File: login
SCRIPT438: Object doesn't support property or method 'assign'
File: frappe-web.min.js, Line: 806, Column: 1
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Hi, do you have any ideas about the solution?

This might be duplicated in Internet Explorer run ERP - #6 by lasalesi

We are using latest javascript features (ES6) which might not work on older browsers such as IE11. However, this shouldn’t be a problem in production, since we convert the new JS so that it is backward compatible.

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Thanks for your answer.