Web support?

Hi,

I can't retrieve a cached file image through the DefaultCacheManager().getSingleFile or DefaultCacheManager().getFileStream methods on a web browser. it always returns null.
Does somebody have a functional sample?

Start by examining DefaultCacheManager().getSingleFile and DefaultCacheManager().getFileStream in a web-browser run, then determine whether the package documents or implements web support. Done should mean either a functional cached-file retrieval path with a reproducible sample or a clearly documented platform limitation.

Written by the indexing model from the issue text.