diff --git a/lib/readResources.js b/lib/readResources.js
index d167a9c7..9ec32c96 100644
--- a/lib/readResources.js
+++ b/lib/readResources.js
@@ -133,7 +133,7 @@ function readFile(object, uri, saveResourceId, options) {
   let absoluteUrl;
   try {
     absoluteUrl = new URL(
-      uri,
+      uri.replace("#", "%23"),
       hasResourceDirectory ? pathToFileURL(resourceDirectory) : undefined
     );
   } catch (error) {