1 files changed, 15 insertions, 0 deletions
diff --git a/toolkit/modules/LoadContextInfo.jsm b/toolkit/modules/LoadContextInfo.jsm
new file mode 100644
index 000000000..59c5fa620
--- /dev/null
+++ b/toolkit/modules/LoadContextInfo.jsm
@@ -0,0 +1,15 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/**
+ * This jsm is here only for compatibility.  Extension developers may use it
+ * to build nsILoadContextInfo to pass down to HTTP cache APIs.  Originally
+ * it was possible to implement nsILoadContextInfo in JS.  But now it turned
+ * out to be a built-in class only, so we need a component (service) as
+ * a factory to build nsILoadContextInfo in a JS code.
+ */
+
+this.EXPORTED_SYMBOLS = ["LoadContextInfo"];
+this.LoadContextInfo = Components.classes["@mozilla.org/load-context-info-factory;1"]
+                                 .getService(Components.interfaces.nsILoadContextInfoFactory);