I wrote same problem several monthes ago, but it hasn't been fixed yet.
Please let me know how I stop the pop-up page.
I tried to remove and reinstall the chrome and log out the trello. but it still pop up the page.
even this page is over a year..!!! (As of March 31, 2019 new versions of Trello are incompatible with Internet Explorer.)
It is the previous quistion as below.
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"Internet Explorer is Unsupported" page pop up automatically when I open trello in chrome for a month. (it was opened twice everytime.) Please let me know how can I get rid of this?