I'm also seeing this BAD Server message with Chrome 25.0.1364.172. In my javascript console I see many copies of the message:
Refused to load the script 'http://warrensomebody.subsonic.org/rest/getMusicFolders.view?u=warren&p=enc…=MiniSub&callback=jQuery17209850529178511351_1363542017124&_=1363542293169' because it violates the following Content Security Policy directive: "script-src 'self' chrome-extension-resource:".
jquery-1.7.2.min.js:4
send jquery-1.7.2.min.js:4
f.extend.ajax jquery-1.7.2.min.js:4
getMusicFolders api.js:146
loadTabContent ui-ready.js:122
(anonymous function) ui-ready.js:185
f.event.dispatch jquery-1.7.2.min.js:3
h.handle.i jquery-1.7.2.min.js:3
The best help I could find on this error is here:
http://stackoverflow.com/questions/12129077/content-security-policy-cannot-load-google-api-in-chrome-extension. Is there some way I can modify my minisub manifest to fix this?