[MERGE] forward port branch 11.0 up to d70518d04f8

1 files changed, 17 insertions, 0 deletions

diff --git a/addons/web/static/src/js/core/misc.js b/addons/web/static/src/js/core/misc.js
index 64ebeeb1794..983b26d3606 100644
--- a/addons/web/static/src/js/core/misc.js
+++ b/addons/web/static/src/js/core/misc.js
@@ -173,6 +173,23 @@ function ReloadContext (parent, action) {
 }
 core.action_registry.add("reload_context", ReloadContext);
 
+// In Internet Explorer, document doesn't have the contains method, so we make a
+// polyfill for the method in order to be compatible.
+if (!document.contains) {
+    document.contains = function contains (node) {
+        if (!(0 in arguments)) {
+            throw new TypeError('1 argument is required');
+        }
+
+        do {
+            if (this === node) {
+                return true;
+            }
+        } while (node = node && node.parentNode);
+
+        return false;
+    };
+}
 
 return {
     blockUI: blockUI,