在js上的Cordova 404文件3级下来

I am using Cordova with a Browser build. Project consists of a html page plus many js files in a directory structure 3 levels deep. I get 404 error for all script tags referencing files in the third level. All other script tags work ok. The project works fine outside of Cordova. I have checked all similar Cordova 404 problems on StackOverflow. Most refer to whitelist which I have checked/changed/re-checked.I am using Cordova with a Browser build. Projec