Force page reload if list columns changed in IE8 (#1487822)

CHANGELOG

@@ -1,6 +1,7 @@
 CHANGELOG Roundcube Webmail
 ===========================
 
+- Force page reload if list columns changed in IE8 (#1487822)
 - Allow mass-removal of addresses from a group (#1487748)
 - Fix removing all contacts on import to LDAP addressbook
 - Fix so "Back" from compose/show doesn't reset search request (#1488238)

program/include/rcube_json_output.php

@@ -212,7 +212,7 @@ class rcube_json_output
     public function redirect($p = array(), $delay = 1)
     {
         $location = rcmail::get_instance()->url($p);
-        $this->remote_response("window.setTimeout(\"location.href='{$location}'\", $delay);");
+        $this->remote_response(sprintf("window.setTimeout(function(){ %s.redirect('%s',true); }, %d);", JS_OBJECT_NAME, $location, $delay));
         exit;
     }
 

program/steps/mail/list.inc

@@ -51,9 +51,15 @@ if ($cols = get_input_value('_cols', RCUBE_INPUT_GET))
   $save_arr['list_cols'] = explode(',', $cols);
 }
 
-if ($save_arr)
+if ($save_arr) {
   $RCMAIL->user->save_prefs($save_arr);
 
+  // force page reload if list columns changed in IE8 (#1487822)
+  if ($save_arr['list_cols'] && $OUTPUT->browser->ie && $OUTPUT->browser->ver == 8) {
+    $OUTPUT->redirect(array('_mbox' => $RCMAIL->storage->get_folder()), 0);
+  }
+}
+
 $mbox_name = $RCMAIL->storage->get_folder();
 $threading = (bool) $RCMAIL->storage->get_threading();