MS Edge does not seem to open basic auth dialog when opened it in a popup. Any workaround?
example:
window.open("http://papermashup.com/demos/php-auth/index.php","_blank")
Can you tell us which release you are using currently?
I find that there is an issue in Edge. This issue is corrected in 17736.rs5_release or later. So if you are not using this version then try to update may help you to solve your issue.
Reference: