Below are two MWEs. The only difference is with \setupinteraction.
When the resulting link is copied from the pdf and pasted into a
browser, one can see that there is a trailing / added to the
interactive version, but not to the non-interactive version. For
this url (and many others), that causes a 404 failure. Additional
experimentation shows that a second / is not added when a trailing
slash has been provided.
This is not the case with TL2013. It is the case with 2014.03.28
15:04 MKIV beta.
Why has the trailing slash added? Is this an intentional change? If
so, is there a method to invoke the older behavior.
\starttext
\useURL[aurl][http://www.mieleusa.com/manuals_pdf/Residential/Ovens/H387-2_us.pdf]
\from[aurl]
\stoptext
\setupinteraction[state=start]
\starttext
\useURL[aurl][http://www.mieleusa.com/manuals_pdf/Residential/Ovens/H387-2_us.pdf]
\from[aurl]
\stoptext
--
Rik