Steps to Reproduce

<language-addon>
    <addon-name>custom</addon-name>
    <version>1.0</version>
    <language-name>xul/html</language-name>
    <depends>zul</depends>

    <javascript src="~./js/zk-5815.js" />
</language-addon>

1. a WAR contains a lang-addon.xml to load a javascript

Current Result

it loads an empty file content

Expected Result

load the js successfully

Debug Information

Workaround

• the following code can be loaded correctly

      <javascript>
          zk.afterResize(function() {
              if (!zk.portlet2Data)
              return;
              delete zk.portlet2Data;
          });
      </javascript>