Don't call readBody for aborted request in IE9

dist/xhook.js

@@ -305,6 +305,9 @@ XHookHttpRequest = window[XMLHTTP] = function() {
     }
   };
   readBody = function() {
+    if (status === ABORTED && msie < 10) {
+      return;
+    }
     if (!xhr.responseType || xhr.responseType === "text") {
       response.text = xhr.responseText;
       response.data = xhr.responseText;

src/xhook.coffee

@@ -220,6 +220,8 @@ XHookHttpRequest = window[XMLHTTP] = ->
         return
 
   readBody = ->
+    if status is ABORTED and msie < 10
+        return
     #https://xhr.spec.whatwg.org/
     if !xhr.responseType or xhr.responseType is "text"
       response.text = xhr.responseText

test/tests.js

@@ -59,4 +59,12 @@ describe('xhook', function() {
     };
     xhr.send();
   });
+
+  it('should not fail on aborted request in IE9', function(done) {
+    var xhr = new XMLHttpRequest();
+    xhr.open('GET', '../example/example1.txt');
+    xhr.send();
+    xhr.abort();
+    done();
+  });
 });