Most modern browsers by default block sites when they try to redirect or open a pop-up. This functionality is unfortunately required by the SigningHub for SharePoint app to perform O365 authentication for the user. In order to allow the browser to allow pop-ups. Please perform the following steps:


1. Open Chrome

2. Click the “More”(3 dots on left top) and select “Settings”

3. Select “Privacy and security” from left menu and click “Site settings”

4. Go to “Pop-ups and redirects”

5. Next to “Allowed to send pop-ups and use redirects, click on “Add”

6. Specify the site URL as “https://[*.]sharepoint.com” and click “Add”

7. Continue to SharePoint.