Excel add-in using Office JS not working with proxy

Question

Our users are not able to use our Excel Add-in from a company with HTTP/HTTPS proxy. The add-in redirects to our authentication page and it works correctly, but when redirected back, the user gets a 407 proxy denied. The add-in is using IE11 in office. When using the IE11 directly the add-in page is accessible. No problems with the Authentication redirecting to the add-in page. Is there a need to configure the proxy from the Office and how do you do that? Or is there any special configuration on the proxy to allow requests from Office.

question from:https://stackoverflow.com/questions/65847434/excel-add-in-using-office-js-not-working-with-proxy

Answer 1

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