Sheerwater\HMACRestfulAuthenticator\HMACRestfulAuthenticator::getCanonicalHeaders
Filters all headers for ones starting with 'X-Api-'. All keys are converted to lowercase. You can change 'Api' by setting the HMACRestfulAuthenticator::$apiName config.
Signature
private function getCanonicalHeaders(array
        $headers )
            
        Parameters
- $headers— array
- An array of HTTP headers to filter
 
Returns
- array