Reset Pragma header in WebContentGenerator when caching resources [SPR-13252]

[spring-projects-issues]

Brian Clozel opened SPR-13252 and commented

When using Spring Security or any other servlet filter setting the pragma HTTP header, applications may write inconsistent responses with caching Cache-Control headers and "no-cache" Pragma headers.

The resource handling code path should make sure that this header is not set.

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Affects: 4.2 RC3

Reference URL: #840

Issue Links:

• Server-side HTTP caching improvements [SPR-11792] #16413 Server-side HTTP caching improvements
• Reset Expires header in WebContentGenerator when caching resources [SPR-14053] #18625 Reset Expires header in WebContentGenerator when caching resources

Referenced from: commits 15fe827, 09e3fc4, ed34ea4