i have a multi-configuration project that call a grunt task with different parameters like this $action and $target
action : build test
target : targetA targetB targetA,targetB
with the command line : "grunt $action:$target"
so, there is 6 possibilities :
build:targetA
test:targetA
build:targetB
test:targetB
build:targetA,targetB
test:targetA,targetB

work fine for the 4 firsts options but when i would like to access to the command output of one of the two last there is an HTPP Error 404 : Not found
the url is : ../job/project_1/action=build,target=targetA,targetB/
due to the comma separation.

maybe you could parse the url ?