Bug 1360466 - Only handle hashchange event for the current window. r=ato

Similar to the other unload and load events during a page load,
the hashchange event should only be handled if the event's target
document is the current window.

MozReview-Commit-ID: F1LMBh5Cy4A

--HG--
extra : rebase_source : 668fd6946067989e7e732b24baf6de2e85541f21

testing/marionette/harness/marionette_harness/tests/unit/test_click.py

@@ -340,6 +340,7 @@ class TestClickNavigation(MarionetteTestCase):
 
         self.marionette.go_back()
         self.marionette.find_element(By.ID, "anchor")
+
         self.marionette.find_element(By.ID, "history-back").click()
         with self.assertRaises(errors.NoSuchElementException):
             self.marionette.find_element(By.ID, "anchor")

testing/marionette/listener.js

@@ -206,7 +206,8 @@ var loadListener = {
    * Callback for registered DOM events.
    */
   handleEvent: function (event) {
-    logger.debug(`Received DOM event "${event.type}" for "${event.originalTarget.baseURI}"`);
+    let location = event.target.baseURI || event.target.location.href;
+    logger.debug(`Received DOM event "${event.type}" for "${location}"`);
 
     switch (event.type) {
       case "unload":
@@ -227,8 +228,10 @@ var loadListener = {
         break;
 
       case "hashchange":
-        this.stop();
-        sendOk(this.command_id);
+        if (event.target === curContainer.frame) {
+          this.stop();
+          sendOk(this.command_id);
+        }
         break;
 
       case "DOMContentLoaded":