Breaks Flowpack.ContentSecurityPolicy package

[73nici]

Hi :),

thanks for the package!
I tried this package together with Flowpack.ContentSecurityPolicy and the Nonce generation from the Flowpack.ContentSecurityPolicy is broken.
The nonce values are added to the HTTP header, but not inside the script tags.

I also tried to change the middleware postion from Flowpack.ContentSecurityPolicy to before dispatch and from Sitegeist.Slipstream to after routing.
But this also didn't help.
Does somebody have an idea, what the problem could be?
Thank you!