In diff view, selecting a context clears any ignore settings, and vice versa

The links in the menu for one option aren't including the variables for the other option

you can get the url by hacking (3 lines of context, ignore all whitespace):
context/browse/repo/path/to/file.java?r1=1&r2=2&u=-1&ignore=w

the link to "10 lines of context" is:
context/browse/repo/path/to/file.java?r1=1&r2=2&u=10

the link to "ignore significant whitespace" is
context/browse/repo/path/to/file.java?r1=1&r2=2&ignore=b