Stop try parent on HTTP STATUS 200

[megoth]

This should solve https://github.com/solid/solid-ui/issues/78

[timbl]

Actually I realize the code was right. The spec says you shoudl go up th etree until you find an default ACL, not an ACL file.

[timbl]

Hmmm

[timbl]

I retract my approval. The original alto was right. It just needs a test for not going too far

[timbl]

tryParent needs to check and exit if there is no acl file atthe root of the domain, to avoid chopping the domain name off

[timbl]

https://github.com/solid/web-access-control-spec/blob/master/README.md
says

Failing that, move up the container hierarchy until you find a container with an existing ACL file, which has some permissions to inherit.

[TallTed]

Have to remember that "move up the container hierarchy" doesn't necessarily mean "truncate the path, solidus by solidus" as the URI's PATH element may not (though it often will) match the logical container hierarchy. Challenge deepens as Containers identify the Members they contain, but Members don't necessarily identify their Containers.

[megoth]

This was handled in https://github.com/solid/solid-ui/pull/80, so closing this PR.