From 5f3176dfd4263c31631ee797e795e2ddeabdc823 Mon Sep 17 00:00:00 2001
From: Robin Ward <robin.ward@gmail.com>
Date: Wed, 11 Mar 2015 10:59:34 -0400
Subject: [PATCH] Adds a deprecation for $LAB usage in case plugins use it

Previously it was just removed which broke MathJax.
---
 .../initializers/lab-deprecation.js.es6       | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 app/assets/javascripts/discourse/initializers/lab-deprecation.js.es6

diff --git a/app/assets/javascripts/discourse/initializers/lab-deprecation.js.es6 b/app/assets/javascripts/discourse/initializers/lab-deprecation.js.es6
new file mode 100644
index 0000000000..1f337933fc
--- /dev/null
+++ b/app/assets/javascripts/discourse/initializers/lab-deprecation.js.es6
@@ -0,0 +1,19 @@
+import loadScript from 'discourse/lib/load-script';
+
+export default {
+  name: 'lab-deprecation',
+
+  initialize() {
+    if (window.$LAB) { return; }
+
+    window.$LAB = {
+      script(path) {
+        Ember.warn('$LAB is not included with Discouse anymore. Use `loadScript` instead.');
+
+        const promise = loadScript(path);
+        promise.wait = promise.then;
+        return promise;
+      }
+    };
+  }
+};