**On August 31, Microsoft removed Code-Based Sandbox Solutions in SharePoint Online - this includes BrainStorm's SharePoint Web Part.  We have a new offering available. The .app file is available in the QuickHelp Admin Portal > Settings > Downloads section. Requirements and configuration instructions are now available in the Support Center. For more information, please contact your BrainStorm Client Success Manager.

You are adding the QuickHelp Web Part to your SharePoint Online environment, but receive an error in IE11.

Resolving this issue is a two-step process.

First, add these sites to your IE Trusted Sites:

Next, please enable the following IE preference:

IE > Tools > Internet Options > Security > Trusted Sites > Security Settings > Miscellaneous > Access data sources across domains 

Both of these changes will need to be made throughout the organization.