'Actually send the requests that might be blocked.
:param fuzzable_request: The FuzzableRequest to modify in order to
see if it\'s blocked'

def _send_requests(self, fuzzable_request):

    rnd_param = rand_alnum(7)
    rnd_value = rand_alnum(7)
    fmt = '%s?%s=%s'
    original_url_str = (fmt % (fuzzable_request.get_url(), rnd_param, rnd_value))
    original_url = URL(original_url_str)
    try:
        http_resp = self._uri_opener.GET(original_url, cache=True)
    except BaseFrameworkException as bfe:
        msg = 'Active    filter    detection    plugin    failed    to    receive    a    response    for    the    first    request.    The    exception    was:    "%s".    Can    not    perform    analysis.'
        raise BaseFrameworkException((msg % bfe))
    else:
        orig_resp_body = http_resp.get_body()
        orig_resp_body = orig_resp_body.replace(rnd_param, '')
        orig_resp_body = orig_resp_body.replace(rnd_value, '')
        tests = []
        for offending_string in self._get_offending_strings():
            offending_url = (fmt % (fuzzable_request.get_url(), rnd_param, offending_string))
            offending_url = URL(offending_url)
            tests.append((offending_string, offending_url, orig_resp_body, rnd_param))
        self.worker_pool.map_multi_args(self._send_and_analyze, tests)
        return (self._filtered, self._not_filtered)
