Fixed handling of 4xx status codes when using instant loading

src/assets/javascripts/integrations/sitemap/index.ts

@@ -21,7 +21,9 @@
  */
 
 import {
+  EMPTY,
   Observable,
+  catchError,
   defaultIfEmpty,
   map,
   of,
@@ -97,6 +99,7 @@ export function fetchSitemap(base?: URL): Observable<Sitemap> {
         map(sitemap => preprocess(getElements("loc", sitemap)
           .map(node => node.textContent!)
         )),
+        catchError(() => EMPTY), // @todo refactor instant loading
         defaultIfEmpty([]),
         tap(sitemap => __md_set("__sitemap", sitemap, sessionStorage, base))
       )

src/assets/javascripts/integrations/version/index.ts

@@ -23,6 +23,7 @@
 import {
   EMPTY,
   Subject,
+  catchError,
   combineLatest,
   filter,
   fromEvent,
@@ -73,6 +74,9 @@ export function setupVersionSelector(
   const versions$ = requestJSON<Version[]>(
     new URL("../versions.json", config.base)
   )
+    .pipe(
+      catchError(() => EMPTY) // @todo refactor instant loading
+    )
 
   /* Determine current version */
   const current$ = versions$