We just discovered this issue on our new production galaxy. When trying to open the workflow editor, the page just stuck in the loading bar. I opened the JavaScript debug console of the web browser, I found;

GET http://pwbcglxprod:8081/galaxy/static/scripts/jquery.js?v=1348871183 404 (Not Found) editor:235

GET http://pwbcglxprod:8081/galaxy/static/scripts/jquery.event.drag.js?v=1348871183 404 (Not Found) editor:235

GET http://pwbcglxprod:8081/galaxy/static/scripts/jquery.tipsy.js?v=1348871183 404 (Not Found) editor:235

GET http://pwbcglxprod:8081/galaxy/static/scripts/jquery.event.drop.js?v=1348871183 404 (Not Found) editor:235

GET http://pwbcglxprod:8081/galaxy/static/scripts/jquery.form.js?v=1348871183 404 (Not Found) editor:235

GET http://pwbcglxprod:8081/galaxy/static/scripts/json2.js?v=1348871183 404 (Not Found) editor:235

GET http://pwbcglxprod:8081/galaxy/static/scripts/jstorage.js?v=1348871183 404 (Not Found) editor:235

GET http://pwbcglxprod:8081/galaxy/static/scripts/jquery.event.hover.js?v=1348871183 404 (Not Found) editor:235

GET http://pwbcglxprod:8081/galaxy/static/scripts/jquery.autocomplete.js?v=1348871183 404 (Not Found) editor:235

GET http://pwbcglxprod:8081/galaxy/static/scripts/autocomplete_tagging.js?v=1348871183 404 (Not Found) editor:235

Uncaught TypeError: Object [object Object] has no method 'autocomplete_tagging' editor:3605

Uncaught TypeError: Cannot call method 'get' of undefined editor:497

Uncaught TypeError: Cannot call method 'hide' of undefined galaxy.panels.js:202

Seems that the URLs are not correct, they should be found under scripts/libs/jquery/. Worth to mention, not all the JS are broken, for example the jquery.event.drag.js was found correctly: