Issue #15017: Properly handle and report network errors on page loads.

1 files changed, 17 insertions, 10 deletions

diff --git a/components/script/dom/servoparser/mod.rs b/components/script/dom/servoparser/mod.rs
index aaa36a2098b..9b4d6698439 100644
--- a/components/script/dom/servoparser/mod.rs
+++ b/components/script/dom/servoparser/mod.rs
@@ -431,6 +431,7 @@ impl FetchResponseListener for ParserContext {
 
     fn process_response(&mut self, meta_result: Result<FetchMetadata, NetworkError>) {
         let mut ssl_error = None;
+        let mut network_error = None;
         let metadata = match meta_result {
             Ok(meta) => {
                 Some(match meta {
@@ -445,6 +446,13 @@ impl FetchResponseListener for ParserContext {
                 meta.set_content_type(mime.as_ref());
                 Some(meta)
             },
+            Err(NetworkError::Internal(reason)) => {
+                network_error = Some(reason);
+                let mut meta = Metadata::default(self.url.clone());
+                let mime: Option<Mime> = "text/html".parse().ok();
+                meta.set_content_type(mime.as_ref());
+                Some(meta)
+            },
             Err(_) => None,
         };
         let content_type = metadata.clone().and_then(|meta| meta.content_type).map(Serde::into_inner);
@@ -486,6 +494,14 @@ impl FetchResponseListener for ParserContext {
                     parser.push_input_chunk(page);
                     parser.parse_sync();
                 }
+                if let Some(reason) = network_error {
+                    self.is_synthesized_document = true;
+                    let page_bytes = read_resource_file("neterror.html").unwrap();
+                    let page = String::from_utf8(page_bytes).unwrap();
+                    let page = page.replace("${reason}", &reason);
+                    parser.push_input_chunk(page);
+                    parser.parse_sync();
+                }
             },
             Some(ContentType(Mime(TopLevel::Text, SubLevel::Xml, _))) => {}, // Handle text/xml
             Some(ContentType(Mime(toplevel, sublevel, _))) => {
@@ -527,16 +543,7 @@ impl FetchResponseListener for ParserContext {
             None => return,
         };
 
-        if let Err(NetworkError::Internal(ref reason)) = status {
-            // Show an error page for network errors,
-            // certificate errors are handled earlier.
-            self.is_synthesized_document = true;
-            let page_bytes = read_resource_file("neterror.html").unwrap();
-            let page = String::from_utf8(page_bytes).unwrap();
-            let page = page.replace("${reason}", reason);
-            parser.push_input_chunk(page);
-            parser.parse_sync();
-        } else if let Err(err) = status {
+        if let Err(err) = status {
             // TODO(Savago): we should send a notification to callers #5463.
             debug!("Failed to load page URL {}, error: {:?}", self.url, err);
         }