Tests reading cached response from the protocol.
Cached requests:
text/html
Type of body: string
application/x-javascript
Type of body: string
Trying without specifying all the arguments:
Error: Invalid parameters Failed to deserialize params.cacheId - BINDINGS: string value expected <somewhere>
Trying without specifying the request path:
Error: Invalid parameters Failed to deserialize params.requestURL - BINDINGS: string value expected <somewhere>
Trying with non existant cache:
Error: Invalid cache id 
Trying with non existant request path:
Error: Unable to read cached response: not found.