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-rw-r--r--application/palemoon/components/preferences/advanced.js26
1 files changed, 13 insertions, 13 deletions
diff --git a/application/palemoon/components/preferences/advanced.js b/application/palemoon/components/preferences/advanced.js
index 451af6f78..0803496fe 100644
--- a/application/palemoon/components/preferences/advanced.js
+++ b/application/palemoon/components/preferences/advanced.js
@@ -475,23 +475,23 @@ var gAdvancedPane = {
var pm = Components.classes["@mozilla.org/permissionmanager;1"]
.getService(Components.interfaces.nsIPermissionManager);
var perm = pm.getPermissionObject(principal, "offline-app");
-
- // clear offline cache entries
- var cacheService = Components.classes["@mozilla.org/network/application-cache-service;1"].
- getService(Components.interfaces.nsIApplicationCacheService);
- var ios = Components.classes["@mozilla.org/network/io-service;1"].
- getService(Components.interfaces.nsIIOService);
- var groups = cacheService.getGroups();
- for (var i = 0; i < groups.length; i++) {
- var uri = ios.newURI(groups[i], null, null);
- if (perm.matchesURI(uri, true)) {
+ if (perm) {
+ // clear offline cache entries
+ try {
+ var cacheService = Components.classes["@mozilla.org/network/application-cache-service;1"].
+ getService(Components.interfaces.nsIApplicationCacheService);
+ var groups = cacheService.getGroups();
+ for (var i = 0; i < groups.length; i++) {
+ var uri = Services.io.newURI(groups[i], null, null);
+ if (perm.matchesURI(uri, true)) {
var cache = cacheService.getActiveCache(groups[i]);
cache.discard();
+ }
}
- }
-
- pm.removePermission(perm);
+ } catch (e) {}
+ pm.removePermission(perm);
+ }
list.removeChild(item);
gAdvancedPane.offlineAppSelected();
this.updateActualAppCacheSize();