according the forum, the user is trying to implement offline mode with a browser http doc base and a local file path codebase in applet tag.
In order to do offline mode, every bits needs to be on the local system, including the html/js loaded by the browser.
If I understand the posting in forum correctly, they are trying to load the html via browser, using a http URL, e.g:
And inside applet.html, customer have codebase pointing to c:\some_files
This will not work due to security reasons. And most browser blocks this too, e.g:
won't load either by a browser, if the html is loaded via http://your_host.com/img.html
So if customer want to use codebase with a local path, the browser html/js file itself needs to be loaded from the local file system too.