Description

When trying to change the icon for an item in Content Editor by clicking More Items (on the Configure tab in the Appearance chunk, in the Icon drop-down) or clicking directly on an item's icon at the top of content area, the page becomes unresponsive and the following error might appear in the browser's console:

Uncaught Error: Syntax error, unrecognized expression: img[usemap=#Applications]
    at Function.fa.error (jquery-1.12.4.min.js:2)
    at fa.tokenize (jquery-1.12.4.min.js:2)
    at fa.select (jquery-1.12.4.min.js:2)
    at Function.fa [as find] (jquery-1.12.4.min.js:2)
    at n.fn.init.find (jquery-1.12.4.min.js:2)
    at new n.fn.init (jquery-1.12.4.min.js:2)
    at n (jquery-1.12.4.min.js:2)
    at i (jquery-ui-1.10.3.min.js:6)
    at Array.focusable (jquery-ui-1.10.3.min.js:6)
    at jquery-1.12.4.min.js:2

Solution

To resolve the issue, apply the following workaround:

1. Open the /sitecore/shell/Controls/Lib/jQuery folder.
2. Disable the jquery-1.12.4.min.js file by renaming it to jquery-1.12.4.min.js.disabled.
3. Create a copy of the jquery-1.10.2.min.js file.
4. Rename this copy to jquery-1.12.4.min.js.
5. Clear the browser cache.