browser.js in poltergeist-1.14.0

- old
+ new

@@ -98,12 +98,15 @@
   Browser.prototype.setModalMessage = function(msg) {
     this.processed_modal_messages.push(msg);
   };
 
   Browser.prototype.add_extension = function(extension) {
-    this.currentPage.injectExtension(extension);
-    return this.current_command.sendResponse('success');
+    if (this.currentPage.injectExtension(extension)) {
+      return this.current_command.sendResponse('success');
+    } else {
+      return this.current_command.sendError(new Poltergeist.BrowserError("Unable to load extension: " + extension));
+    }
   };
 
   Browser.prototype.node = function(page_id, id) {
     if (this.currentPage.id === page_id) {
       return this.currentPage.get(id);
@@ -586,12 +589,12 @@
       height: height
     });
     return this.current_command.sendResponse(true);
   };
 
-  Browser.prototype.network_traffic = function() {
-    return this.current_command.sendResponse(this.currentPage.networkTraffic());
+  Browser.prototype.network_traffic = function(type) {
+    return this.current_command.sendResponse(this.currentPage.networkTraffic(type));
   };
 
   Browser.prototype.clear_network_traffic = function() {
     this.currentPage.clearNetworkTraffic();
     return this.current_command.sendResponse(true);
@@ -622,12 +625,17 @@
       allHeaders[name] = value;
     }
     return this.set_headers(allHeaders);
   };
 
-  Browser.prototype.add_header = function(header, permanent) {
-    if (!permanent) {
+  Browser.prototype.add_header = function(header, arg1) {
+    var permanent, ref;
+    permanent = (ref = arg1.permanent) != null ? ref : true;
+    if (permanent !== true) {
       this.currentPage.addTempHeader(header);
+      if (permanent === "no_redirect") {
+        this.currentPage.addTempHeaderToRemoveOnRedirect(header);
+      }
     }
     return this.add_headers(header);
   };
 
   Browser.prototype.response_headers = function() {