X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=helm%2Fhttp_getter%2Fhttp_getter.ml;h=02877b012c55690222fb7c2a87763225706f82bd;hb=21a69c0525553c5e197ca0499705afe904fd7260;hp=982544bce69e606545660e839f7d539b471fb7ac;hpb=820fd1d8c05fcf75c12f635903728cb17abd4576;p=helm.git

diff --git a/helm/http_getter/http_getter.ml b/helm/http_getter/http_getter.ml
index 982544bce..02877b012 100644
--- a/helm/http_getter/http_getter.ml
+++ b/helm/http_getter/http_getter.ml
@@ -88,7 +88,12 @@ let map_of_uri = function
   | uri when is_xsl_uri uri -> xsl_map
   | uri -> raise (Http_getter_unresolvable_URI uri)
 in
-let resolve uri = (map_of_uri uri)#resolve uri in
+let resolve uri =
+  try
+    (map_of_uri uri)#resolve uri
+  with Http_getter_map.Key_not_found _ ->
+    raise (Http_getter_unresolvable_URI uri)
+in
 let register uri =  (map_of_uri uri )#add uri in
 let return_all_foo_uris map doctype filter outchan =
   (** return all URIs contained in 'map' which satisfy predicate 'filter'; URIs