Hi Alexander,
Per design, Cloud WAF proxies the original request to the Origin. This of course, excludes attack traffic.
I believe you might be asking - When rewrite rules are in place, does Imperva Cloud WAF append a header containing the original requested URI?
By default, this information is not passed. However, Abhishek has an answer below using custom rules.
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Jaired Anderson
Principal Consultant
Imperva
Tulsa OK
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