[TRINIDAD-2039] Icons are created if the string for the resource is an empty string in Trinidad 1.2

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.2.15-core
• Fix Version/s: 1.2.15-core
• Component/s: Components
• Assignee: Andrew Robinson
• Reporter: Andrew Robinson
• Created: 18/Feb/11 17:28
• Updated: 18/Feb/11 17:52
• Resolved: 18/Feb/11 17:52

Description

The toResourceUri in CoreRenderer returns null for a "" value in Trinidad 2 but not in Trinidad 1.2. What happens is that icons that may evaluate to blank strings (like EL bound icon attributes) may end up rendering a <img src=""> tag in Trinidad 1.2. This results in an extra call to the server in at least some browsers.

We should backport the fix from Trinidad 2 to 1.2 to prevent this from happening.

Issue can be reproduced easily with this code:
<tr:commandButton id="search" text="Search" icon="" action="search"/>