I solved this by using regex on the response body:
var regexHandler = function(match, cookieValue){
return ""; //remove the meta tag
};
responseBody = responseBody.replace(/<meta.*http-equiv=[\"']?set-cookie[\"']?.*content=[\"'](.*)[\"'].*>/gi, regexHandler);
responseBody = responseBody.replace(/<meta.*content=[\"'](.*)[\"'].*http-equiv=[\"']?set-cookie[\"']? .*>/gi, regexHandler);