diff --git a/src/sharing/sharing.js b/src/sharing/sharing.js
index a18ef58..c47a18d 100644
--- a/src/sharing/sharing.js
+++ b/src/sharing/sharing.js
@@ -66,6 +66,7 @@ Player.provide('sharing',
       // Helper function
       var absolutize = function(u){
         if(!/\/\//.test(u)) u = Player.get('mainUrl')+u;
+        u = u.replace(/^http:\/\//i, 'https://');
         return u;
       };