Merge pull request #742 from jugglinmike/option-content-length

Set `Content-Length` header for OPTIONS requests

Author: jcrugzz

lib/http-proxy/passes/web-incoming.js

@@ -29,7 +29,8 @@ web_o = Object.keys(web_o).map(function(pass) {
    */
 
   function deleteLength(req, res, options) {
-    if(req.method === 'DELETE' && !req.headers['content-length']) {
+    if((req.method === 'DELETE' || req.method === 'OPTIONS')
+       && !req.headers['content-length']) {
       req.headers['content-length'] = '0';
     }
   },

test/lib-http-proxy-passes-web-incoming-test.js

@@ -5,14 +5,23 @@ var webPasses = require('../lib/http-proxy/passes/web-incoming'),
 
 describe('lib/http-proxy/passes/web.js', function() {
   describe('#deleteLength', function() {
-    it('should change `content-length`', function() {
+    it('should change `content-length` for DELETE requests', function() {
       var stubRequest = {
         method: 'DELETE',
         headers: {}
       };
       webPasses.deleteLength(stubRequest, {}, {});
       expect(stubRequest.headers['content-length']).to.eql('0');
-    })
+    });
+
+    it('should change `content-length` for OPTIONS requests', function() {
+      var stubRequest = {
+        method: 'OPTIONS',
+        headers: {}
+      };
+      webPasses.deleteLength(stubRequest, {}, {});
+      expect(stubRequest.headers['content-length']).to.eql('0');
+    });
   });
 
   describe('#timeout', function() {