diff --git a/apps/builder/app/builder/features/settings-panel/resource-panel.tsx b/apps/builder/app/builder/features/settings-panel/resource-panel.tsx
index b8bd2bb0a0..e8558488df 100644
--- a/apps/builder/app/builder/features/settings-panel/resource-panel.tsx
+++ b/apps/builder/app/builder/features/settings-panel/resource-panel.tsx
@@ -309,6 +309,11 @@ export const ResourceForm = forwardRef<
       if (evaluatedValue.length === 0) {
         return "URL is required";
       }
+      try {
+        new URL(evaluatedValue);
+      } catch {
+        return "URL is invalid";
+      }
     },
   });
   const [method, setMethod] = useState<Resource["method"]>(
diff --git a/packages/sdk/src/resource-loader.ts b/packages/sdk/src/resource-loader.ts
index c08f1d41c9..c9496062aa 100644
--- a/packages/sdk/src/resource-loader.ts
+++ b/packages/sdk/src/resource-loader.ts
@@ -13,7 +13,9 @@ export const loadResource = async (resourceData: Resource) => {
     requestInit.body = body;
   }
   try {
-    const response = await fetch(url, requestInit);
+    // cloudflare workers fail when fetching url contains spaces
+    // even though new URL suppose to trim them on parsing by spec
+    const response = await fetch(url.trim(), requestInit);
     let data;
     if (
       response.ok &&