RequestHeader can not match single space char?

[David Balažic <david.balazic@xxxxxxxxxxxx>]

Hi!

I have apache 2.4.7-1ubuntu4.9  (on Ubuntu 14.04.4 64bit) and while this works:
RequestHeader edit Some-Header " M" "X" 

This does not:
RequestHeader edit Some-Header " " "X" 

Am I missing something obvious?

The first one matches a pair of space and capital M and replaces them with X.
The later does not seem to do anything (to the same test data).
I also tried using "\s", but it also does not seem to work.

Help!

David Balažic
Software Engineer

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