---
title: Defining an OWA Compression Resource Policy
slug: ps/help/en_us/ics/com/wrcg/defining-an-owa-compression-resource-policy
docTags: 
createdAt: 2026-08-03T10:00:46.587Z
---

Due to caching issues with OWA, the system comes with the following built-in resource policies specifying that it should not compress Javascript or CSS files that are routed through OWA:

1. Do Not Compress \*:\*/exchWeb/controls/\*.css (all roles)
2. Do Not Compress \*:\*/exchWeb/controls/\*.js (all roles)
3. Do Not Compress \*:\*/exchWeb/\*/controls/\*.css (all roles)
4. Do Not Compress \*:\*/exchWeb/\*/controls/\*.js (all roles)

:::Paragraph{indent="1"}
In the last two policies, a wildcard (\*) is included in the path to account for different OWA build versions.
:::

:::Paragraph{indent="1"}
Pulse Secure recommends that you do not change the compression resource policies for OWA unless absolutely necessary.
:::