fetch should handle Request object usage

dist/xhook.js

@@ -1,6 +1,6 @@
 // XHook - v1.4.9 - 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; };
 
@@ -606,8 +606,11 @@ if (typeof WINDOW[FETCH] === "function") {
         headers: {}
       };
     }
-    options.url = url;
     request = null;
+    if (url instanceof Request) {
+      request = url;
+    }
+    options.url = url;
     beforeHooks = xhook.listeners(BEFORE);
     afterHooks = xhook.listeners(AFTER);
     return new Promise(function(resolve, reject) {
@@ -697,4 +700,4 @@ if (typeof define === "function" && define.amd) {
   WINDOW.xhook = xhook;
 }
 
-}.call(this));
+}.call(this,window));

src/xhook.coffee

@@ -522,8 +522,11 @@ if typeof WINDOW[FETCH] is "function"
   NativeFetch = WINDOW[FETCH]
   xhook[FETCH] = NativeFetch
   XHookFetchRequest = WINDOW[FETCH] = (url, options = { headers: {} }) ->
-    options.url = url
     request = null
+    if url instanceof Request
+      request = url;
+    options.url = url
+
 
     beforeHooks = xhook.listeners BEFORE
     afterHooks = xhook.listeners AFTER

test/tests.js

@@ -65,6 +65,24 @@ describe('xhook', function() {
   });
 
   describe('fetch', function() {
+    it('should handle request objects', function(done) {
+      const request = new Request('../example/example1.txt', { headers: {
+        'x-blah': 'blah',
+      }});
+      xhook.before(function(req, callback) {
+        const value = req.headers.get('x-blah');
+        expect(value).to.equal('blah');
+        callback();
+      });
+      fetch(request)
+        .then(function(response) {
+          return response.text()
+        })
+        .then(function(text) {
+          expect(text).to.contain('the first text file');
+          done();
+        });
+    });
 
     it('should not modify url', function(done) {
       fetch('../example/example1.txt')
@@ -170,4 +188,5 @@ describe('xhook', function() {
   });
 
 
+
 });