PDF attachment download does not open in Internet Explorer IE 11
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs 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
Summary
Problem
When downloading PDF files via IE 11 the files are incompletely downloaded and does not open . When trying to open the PDF the below message is displayed
Environment
The issue occurs on internet explorer IE 11
Confluence uses a proxy server .
Solution
This is caused due to some issue with the proxy server settings.
Workaround
This issue is solved when Confluence is used bypassing the proxy.
You might want to check the compression settings in your proxy configuration.
Alternatively, use other browsers to download the attachment (Chrome, Firefox etc).
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