5 files changed, 30 insertions, 0 deletions
diff --git a/content/fetchers/about.c b/content/fetchers/about.c
index 402bb40bf..9b6ec88db 100644
--- a/content/fetchers/about.c
+++ b/content/fetchers/about.c
@@ -669,6 +669,11 @@ static void fetch_about_finalise(lwc_string *scheme)
 	}
 }
 
+static bool fetch_about_can_fetch(const nsurl *url)
+{
+	return true;
+}
+
 /** callback to set up a about fetch context. */
 static void *
 fetch_about_setup(struct fetch *fetchh,
@@ -792,6 +797,7 @@ void fetch_about_register(void)
 
 	fetch_add_fetcher(scheme,
 		fetch_about_initialise,
+		fetch_about_can_fetch,
 		fetch_about_setup,
 		fetch_about_start,
 		fetch_about_abort,
diff --git a/content/fetchers/curl.c b/content/fetchers/curl.c
index 09bfbdd00..be2b6c806 100644
--- a/content/fetchers/curl.c
+++ b/content/fetchers/curl.c
@@ -113,6 +113,7 @@ static char fetch_proxy_userpwd[100];	/**< Proxy authentication details. */
 
 static bool fetch_curl_initialise(lwc_string *scheme);
 static void fetch_curl_finalise(lwc_string *scheme);
+static bool fetch_curl_can_fetch(const nsurl *url);
 static void * fetch_curl_setup(struct fetch *parent_fetch, nsurl *url,
 		 bool only_2xx, const char *post_urlenc,
 		 const struct fetch_multipart_data *post_multipart,
@@ -252,6 +253,7 @@ void fetch_curl_register(void)
 
 		if (!fetch_add_fetcher(scheme,
 				fetch_curl_initialise,
+				fetch_curl_can_fetch,
 				fetch_curl_setup,
 				fetch_curl_start,
 				fetch_curl_abort,
@@ -318,6 +320,10 @@ void fetch_curl_finalise(lwc_string *scheme)
 	}
 }
 
+bool fetch_curl_can_fetch(const nsurl *url)
+{
+	return nsurl_enquire(url, NSURL_HOST);
+}
 
 /**
  * Start fetching data for the given URL.
diff --git a/content/fetchers/data.c b/content/fetchers/data.c
index bc2349733..80b48b0e4 100644
--- a/content/fetchers/data.c
+++ b/content/fetchers/data.c
@@ -75,6 +75,11 @@ static void fetch_data_finalise(lwc_string *scheme)
 	curl_easy_cleanup(curl);
 }
 
+static bool fetch_data_can_fetch(const nsurl *url)
+{
+	return true;
+}
+
 static void *fetch_data_setup(struct fetch *parent_fetch, nsurl *url,
 		 bool only_2xx, const char *post_urlenc,
 		 const struct fetch_multipart_data *post_multipart,
@@ -330,6 +335,7 @@ void fetch_data_register(void)
 
 	fetch_add_fetcher(scheme,
 		fetch_data_initialise,
+		fetch_data_can_fetch,
 		fetch_data_setup,
 		fetch_data_start,
 		fetch_data_abort,
diff --git a/content/fetchers/file.c b/content/fetchers/file.c
index f30637c87..e3bb63ea8 100644
--- a/content/fetchers/file.c
+++ b/content/fetchers/file.c
@@ -112,6 +112,11 @@ static void fetch_file_finalise(lwc_string *scheme)
 {
 }
 
+static bool fetch_file_can_fetch(const nsurl *url)
+{
+	return true;
+}
+
 /** callback to set up a file fetch context. */
 static void *
 fetch_file_setup(struct fetch *fetchh,
@@ -645,6 +650,7 @@ void fetch_file_register(void)
 
 	fetch_add_fetcher(scheme,
 		fetch_file_initialise,
+		fetch_file_can_fetch,
 		fetch_file_setup,
 		fetch_file_start,
 		fetch_file_abort,
diff --git a/content/fetchers/resource.c b/content/fetchers/resource.c
index d46d377dc..dc6fd8c72 100644
--- a/content/fetchers/resource.c
+++ b/content/fetchers/resource.c
@@ -219,6 +219,11 @@ static void fetch_resource_finalise(lwc_string *scheme)
 	}
 }
 
+static bool fetch_resource_can_fetch(const nsurl *url)
+{
+	return true;
+}
+
 /** callback to set up a resource fetch context. */
 static void *
 fetch_resource_setup(struct fetch *fetchh,
@@ -350,6 +355,7 @@ void fetch_resource_register(void)
 
 	fetch_add_fetcher(scheme,
 		fetch_resource_initialise,
+		fetch_resource_can_fetch,
 		fetch_resource_setup,
 		fetch_resource_start,
 		fetch_resource_abort,