A corrected version of the Kanban Column Hider that will work globally across all projects

Column Hider-All Projects.js

tau.mashups
 .addDependency('libs/jquery/jquery')
 .addMashup(function ($, config) {
   
   // Put states' names that you want to hide here
   var statesToHide = ["In Progress", "Fixed"];
   
   for (var i = 0; i < statesToHide.length; i++) {
    var headers = $(".kanban-swimlane-header-wrap span:contains('"+statesToHide[i]+"')").filter(function() {
        return $(this).text().match("^"+statesToHide[i]) != null;
    });

    $.each(headers, function(idx, el) {
        var header = $(el).parent();
    	   //use header Id to construct column Id
        var col = $("#" + header.id().replace("header-", ""));

        //hide everything
        header.hide();
        col.hide();
    });
   }
   
   
});