get issuer via rpc

oauth3.core.js

@@ -747,6 +747,20 @@
       */
       return OAUTH3._browser.request(preq, opts);
     }
+  , issuer: function (opts) {
+      if (!opts) { opts = {}; }
+
+      // TODO this will default to browserlogin.org
+      var broker = opts.broker || 'https://broker.oauth3.org';
+
+      opts._rpc = "broker";
+      opts._scheme = "localstorage:";
+      opts._pathname = "issuer";
+
+      return OAUTH3._rpcHelper(broker, opts).then(function(issuer) {
+        return issuer;
+      });
+    }
   , implicitGrant: function (directives, opts) {
       var promise;
       var providerUri = directives.azp || directives.issuer || directives;
@@ -923,13 +937,13 @@
           }
         }
 
-        if (!(opts.client_id || opts.client_uri).match(OAUTH3._browser.window.location.hostname)) {
+        if (!(opts.client_id || opts.client_uri || '').match(OAUTH3._browser.window.location.hostname)) {
           console.warn("It looks like your client_id doesn't match your current window..."
             + " this probably won't end well");
           console.warn(opts.client_id || opts.client_uri, OAUTH3._browser.window.location.hostname);
         }
 
-        var discReq = OAUTH3.urls.rpc(
+        var discReq = OAUTH3.urls[opts._rpc || 'rpc'](
           providerUri
         , { client_id: (opts.client_id || opts.client_uri || OAUTH3.clientUri(OAUTH3._browser.window.location))
           , windowType: opts.broker && opts.windowType || 'background'
@@ -971,7 +985,14 @@
             }
 
             // TODO params should have response_type indicating json, binary, etc
-            var result = JSON.parse(OAUTH3._base64.decodeUrlSafe(params.data || params.result || params.directives));
+            var result;
+            try {
+              result = JSON.parse(OAUTH3._base64.decodeUrlSafe(params.data || params.result || params.directives));
+            } catch(e) {
+              result = params.data || params.result;
+            }
+
+            console.log('result:', result);
             // caller will call OAUTH3.hooks.directives.set(providerUri, directives);
             return result;
           });