HTTP Compression Causes Display Problems with the Plugin Repository
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
Symptoms
The plugin repository does not display textual wordings. Instead, the strings used to internationalize that plugin are displayed, as in the following screen shot:

Cause
HTTP Compression causes problems with the language settings of the repository plugin, particularly for installations running behind a front-end web server such as IIS 7.
Resolution
Turn off HTTP compression under the "General Configuration" section of the administration control panel.
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