net/http: If-Modified-Since does the wrong thing on implicit index files

[bradfitz]

Reported by Håvid Falch:

The FIleServer code checks the If-Modified-Since time on the directory, not the implicit
index.html file.

Patch is here: http://golang.org/cl/6300081/

[rsc]

Comment 1:

i think this is a dup

[bradfitz]

Comment 2:

Status changed to Duplicate.

Merged into issue #3414.