Throw useful error for post-message send to actual cross-domain windo…

…w with mock domain specified
krakenjs · Mar 20, 2017 · a7d1008 · a7d1008
1 parent 39c1da4
commit a7d1008
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/drivers/send/strategies.js b/src/drivers/send/strategies.js
@@ -11,7 +11,11 @@ export let SEND_MESSAGE_STRATEGIES = {
         emulateIERestrictions(window, win);
 
         if (domain && domain.indexOf(CONSTANTS.MOCK_PROTOCOL) === 0) {
-            domain = `${win.location.protocol}//${win.location.host}`;
+            try {
+                domain = `${win.location.protocol}//${win.location.host}`;
+            } catch (err) {
+                throw new Error(`Attempting to send messsage to mock domain ${domain}, but window is actually cross-domain`);
+            }
         }
 
         if (domain && domain.indexOf(CONSTANTS.FILE_PROTOCOL) === 0) {