Setting item icon using ConnectorResources shows a broken link

[mebyn]

Whenever you set an icon generator using ConnectorResources to the ComboBoxMultiSelect, it shows a broken link in the browser.

[ShawnRG]

Indeed when using a ConnectorResource (in my case a StreamResource), the icons show up as not found.

Browser logs:

Tomcat warnings (A bunch of these, presumably for each item's icon):

12:43:09.279 : [WARN ] : ConnectorResourc :  (10) did not handle connector request for null/383d2ac8-fa66-46f1-849a-33dfc8fc3235 (ConnectorResourceHandler.java:132)
12:43:09.275 : [WARN ] : ConnectorResourc :  (10) did not handle connector request for null/fc5b6fdd-46db-4d47-a1d9-4916c2e17b67 (ConnectorResourceHandler.java:132)
12:43:09.303 : [WARN ] : ConnectorResourc :  (10) did not handle connector request for null/2767d773-13e0-46c1-9a1d-134f25abce39 (ConnectorResourceHandler.java:132)