Attachments Drag and Drop Does Not Work with IIS
Platform Notice: Data Center - This article applies to Atlassian products on the Data Center platform.
Note that this knowledge base article was created for the Data Center version of the product. Data Center knowledge base articles for non-Data Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Symptoms
Attachments drag-and-drop functionality does not work when running Confluence through Microsoft IIS.
Cause
IIS is misconfigured.
Resolution
Check your IIS configuration, e.g. isapi_redirect.properties file. Follow the IIS configuration as recommended at Access Confluence using Integrated Windows Authentication via IIS with SP 2007.