xbmc/xbmc — comment on commit 80e0bafc70b2168892dbd1254e742eda1705a2a2
File:  line 0
By Pivosgroup:

CFile Open does that plug an addition check.

if ( (flags & READ_NO_CACHE) == 0 && URIUtils::IsInternetStream(url, true) && !CUtil::IsPicture(strFileName) )
m_flags |= READ_CACHED;