ensure absolute path after strip to maintain rfc complaince #645
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It's easy to inadvertently remove the leading slash from the request path when stripping which results in sending a malformed GET with a relative path to the backend server.
Example below ...
Origin URL:
Route:
Results in sending
GET oranges/steve.html
to the 1.2.3.4 backend. Proper GET request should always be an absolute path or absolute URI according to the RFC (https://tools.ietf.org/html/rfc2616#section-5.1.2).