The same error can pop up on Internet Explorer 11 and SharePoint.
However, other browsers may not block the content that Edge and IE11 flagged as potentially dangerous.
This indicates theres nothing wrong with that webpage.
If you suspect your online window mistakenly blocked the website, pursue the troubleshooting methods below.
Tweak Your Internet prefs
If nothing worked, go to Internet Options and tweak your prefs.
Were going to add the problematic website to the list of trusted websites and add a certificate exception.
As a last resort, were going to reset all the parameters.
If the issue is still there, switch to a different web app.
Chrome and Firefox are two excellent alternatives.