I have been trying to update my website from jQuery 1.4.3 to 1.11.1 the last days and of course ran into several issues. Most of them I have fixed but I don't understand the latest error I get.
Before when I wanted to show a popup dialog I used this function
a.poplight[href=#?w=270]
But now it says
Uncaught Error: Syntax error, unrecognized expression: a.poplight[href=#?w=270]
Anyone else have had this issue when upgrading jQuery and what might be the issue?