1. A method for testing multiple language versions of a browser-based application, said method comprising: a processor of a computer system receiving a host language Hypertext Transfer Protocol (HTTP) request issued by a host language browser, said host language HTTP request configured to be sent to a host server address, said host language HTTP request comprising a plurality of parameter strings in a host language; and said processor generating a target language HTTP request by replacing each host parameter string of at least one host parameter string of the plurality of parameter strings in the received HTTP request with a respective target parameter string associated with a target language that differs from the host language, said generated target language HTTP request configured to be sent to a target server address associated with and different from the host server address, wherein said generating the target language HTTP request comprises: obtaining globalization rules of correspondence between host parameter strings in the host language and corresponding target parameter strings associated with the target language; finding in the globalization rules: each host parameter string of the at least one host parameter string in the host language HTTP request; determining from the globalization rules: the respective target parameter string corresponding to each host parameter string found, via said finding, in the globalization rules; and replacing each host parameter string of the at least one host parameter string in the host language HTTP request with the respective target parameter string determined from the globalization rules.