Fix portal:navbarSearch in Liferay 7

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: portal-3.0.0
• Fix Version/s: portal-2.0.0, portal-3.0.0, util-2.0.0, util-3.0.0, bridge-ext-1.0.0, bridge-ext-2.0.0, bridge-ext-3.0.0, bridge-ext-5.0.0, bridge-ext-7.0.0
• Component/s: Liferay Faces Bridge Ext, Liferay Faces Portal / Demos / Tests, Liferay Faces Util
• Labels: None

Fix portal:navbarSearch that currently throws a javascript error:

Uncaught TypeError: Cannot read property 'on' of null