webapp: Improve javascript's handling of longpolling connection failures, by reloading the current page in this case. Works around chromium behavior where ajax connections to urls that were already accessed are denied after navigating back to a previous page.

debian/changelog

@@ -27,6 +27,11 @@ git-annex (4.20130828) UNRELEASED; urgency=low
   * Added gcrypt support. This combines a fully encrypted git
     repository (using git-remote-gcrypt) with an encrypted git-annex special
     remote.
+  * webapp: Improve javascript's handling of longpolling connection
+    failures, by reloading the current page in this case.
+    Works around chromium behavior where ajax connections to urls
+    that were already accessed are denied after navigating back to
+    a previous page.
 
  -- Joey Hess <joeyh@debian.org>  Tue, 27 Aug 2013 11:03:00 -0400
 

doc/bugs/clicking_back_in_the_web_browser_crashes.mdwn

@@ -19,3 +19,5 @@ When I click on the "back" button in my web browser, I get the following error m
 ### Please provide any additional information below.
 
 Click "forward" actually brings us back to sanity, and the webapp doesn't actually *crash*. -- [[anarcat]]
+
+> I have applied the page reload fix/hack. [[done]] --[[Joey]] 

templates/notifications/longpolling.julius

@@ -3,7 +3,7 @@ $(function() {
 		var f = function() {
 			longpoll(url, #{ident}
 				, function() { setTimeout(f, #{delay}); }
-				, function() { webapp_disconnected(); }
+				, function() { window.location.reload(true); }
 			);	
 		};
 		setTimeout(f, #{startdelay});

templates/page.julius

@@ -1,17 +0,0 @@
-connfailed =
-  '<div id="modal" class="modal fade">' +
-  '  <div class="modal-header">' +
-  '    <h3>git-annex has shut down</h3>' +
-  '  </div>' +
-  '  <div class="modal-body">' +
-  '    You can now close this browser window.' +
-  '  </div>' +
-  '</div>' ;
-
-function webapp_disconnected () {
-	$('#modal').replaceWith(connfailed);
-	$('#modal').modal('show');
-
-	// ideal, but blocked by many browsers
-	window.close();
-}