JA4H should be case-sensitive only for "Cookie" and "Referer" fields

[noeltimothy]

When computing JA4H, we need to relax sesitivity oon the "Cookie" and "Referer" fields present in the HTTP headers. All other header fields and values should be case-sensitive.

[john-althouse]

So when recording the headers, they should be recorded case sensitive, but when looking for "Cookie" and "Referer" the search for those headers should be case insensitive.

[noeltimothy]

Yes John, got it.