Especially in dataset -> class -> [back] - this should go back to the dataset view. The url should include the class name, preferably as as
http://localhost:8080/datasets/de86f272-bc40-4674-befb-022f75b3a24c/classname (and in /edit/ too)

Related, it'd be nice if the job status page could use / to separate the job id, instead of # (the back button behaviour here is good though!)