diff --git a/dist/xhook.js b/dist/xhook.js
index 05a9475..1df1cc5 100644
--- a/dist/xhook.js
+++ b/dist/xhook.js
@@ -1,6 +1,6 @@
 // XHook - v1.4.8 - https://github.com/jpillora/xhook
 // Jaime Pillora <dev@jpillora.com> - MIT Copyright 2018
-(function(undefined) {
+(function(window,undefined) {
 var AFTER, BEFORE, COMMON_EVENTS, EventEmitter, FETCH, FIRE, FormData, NativeFetch, NativeFormData, NativeXMLHttp, OFF, ON, READY_STATE, UPLOAD_EVENTS, WINDOW, XHookFetchRequest, XHookFormData, XHookHttpRequest, XMLHTTP, convertHeaders, depricatedProp, document, fakeEvent, mergeObjects, msie, nullify, proxyEvents, slice, useragent, xhook, _base,
   __indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
 
@@ -333,7 +333,11 @@ XHookHttpRequest = WINDOW[XMLHTTP] = function() {
     if (!xhr.responseType || xhr.responseType === "text") {
       response.text = xhr.responseText;
       response.data = xhr.responseText;
-      response.xml = xhr.responseXML;
+      try {
+        response.xml = xhr.responseXML;
+      } catch (_error) {
+
+      }
     } else if (xhr.responseType === "document") {
       response.xml = xhr.responseXML;
       response.data = xhr.responseXML;
@@ -693,4 +697,4 @@ if (typeof define === "function" && define.amd) {
   WINDOW.xhook = xhook;
 }
 
-}.call(this));
\ No newline at end of file
+}.call(this,window));
\ No newline at end of file
diff --git a/dist/xhook.min.js b/dist/xhook.min.js
index 0f0d7ec..ee9aefb 100644
--- a/dist/xhook.min.js
+++ b/dist/xhook.min.js
@@ -1,3 +1,3 @@
 // XHook - v1.4.8 - https://github.com/jpillora/xhook
 // Jaime Pillora <dev@jpillora.com> - MIT Copyright 2018
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f.length?(a=f.shift(),1===a.length?d(a(b)):2===a.length?a(h(),d):void 0):void l()},l=function(){return j(h()).then(function(a){return i(a)}).catch(function(a){return i(a),c(a)})},k()})}),t.UNSENT=0,t.OPENED=1,t.HEADERS_RECEIVED=2,t.LOADING=3,t.DONE=4,"function"==typeof define&&define.amd?define("xhook",[],function(){return F}):"object"==typeof module&&module.exports?module.exports={xhook:F}:q&&(q.xhook=F)}).call(this,window);
\ No newline at end of file
diff --git a/src/xhook.coffee b/src/xhook.coffee
index 385f94a..0953365 100644
--- a/src/xhook.coffee
+++ b/src/xhook.coffee
@@ -242,7 +242,13 @@ XHookHttpRequest = WINDOW[XMLHTTP] = ->
     if !xhr.responseType or xhr.responseType is "text"
       response.text = xhr.responseText
       response.data = xhr.responseText
-      response.xml = xhr.responseXML
+      try
+        response.xml = xhr.responseXML
+      catch
+        # unable to set responseXML due to response type, we attempt to assign responseXML
+        # when the type is text even though it's against the spec due to several libraries
+        # and browser vendors who allow this behavior. causing these requests to fail when
+        # xhook is installed on a page.
     else if xhr.responseType is "document"
       response.xml = xhr.responseXML
       response.data = xhr.responseXML