Merge branch 'pr-118-case-insensitive-auth-scheme'

Make comparison of scheme in auth header case-insensitive
Closes #118

Author: mikenicholson

lib/extract_jwt.js

@@ -50,12 +50,13 @@ extractors.fromUrlQueryParameter = function (param_name) {
 
 
 extractors.fromAuthHeaderWithScheme = function (auth_scheme) {
+    var auth_scheme_lower = auth_scheme.toLowerCase();
     return function (request) {
 
         var token = null;
         if (request.headers[AUTH_HEADER]) {
             var auth_params = auth_hdr.parse(request.headers[AUTH_HEADER]);
-            if (auth_params && auth_scheme === auth_params.scheme) {
+            if (auth_params && auth_scheme_lower === auth_params.scheme.toLowerCase()) {
                 token = auth_params.value;
             }
         }

test/extrators-test.js

@@ -130,6 +130,15 @@ describe('Token extractor', function() {
             expect(token).to.equal('abcd123');
         });
 
+
+        it('should perform a case-insensivite string comparison', function () {
+            var req = new Request()
+            req.headers['authorization'] = 'test_scheme abcd123';
+
+            var token = extractor(req);
+
+            expect(token).to.equal('abcd123');
+        });
     });