[4.11P2 Prebuilt][Bug] HTML5 map downloading on the fly is broken. (Plus problems with non-map downloading on the fly on latest firefox)

Does work in previous versions? It is important to note that has not been tested in 4.11 yet and as such we cannot guarantee there will be no errors with the project. Are there any other 4.10 projects you have updated that are experiencing the same errors?