Disable search by ENS name if network does not support it

src/Address.tsx

@@ -100,7 +100,10 @@ const Address: React.FC = () => {
   return (
     <StandardFrame>
       {error ? (
-        <AddressOrENSNameNotFound addressOrENSName={addressOrName} />
+        <AddressOrENSNameNotFound
+          addressOrENSName={addressOrName}
+          supportsENS={provider?.network.ensAddress !== undefined}
+        />
       ) : (
         checksummedAddress && (
           <>

src/components/AddressOrENSNameNotFound.tsx

@@ -4,16 +4,19 @@ import ContentFrame from "../ContentFrame";
 
 type AddressOrENSNameNotFoundProps = {
   addressOrENSName: string;
+  supportsENS: boolean;
 };
 
 const AddressOrENSNameNotFound: React.FC<AddressOrENSNameNotFoundProps> = ({
   addressOrENSName,
+  supportsENS,
 }) => (
   <>
     <StandardSubtitle>Transaction Details</StandardSubtitle>
     <ContentFrame>
       <div className="py-4 text-sm">
-        "{addressOrENSName}" is not an ETH address or ENS name.
+        "{addressOrENSName}" is not an ETH address
+        {supportsENS && " or ENS name"}.
       </div>
     </ContentFrame>
   </>

src/useResolvedAddresses.ts

@@ -48,6 +48,7 @@ export const useAddressOrENS = (
     if (!provider) {
       return;
     }
+    if (provider.network.ensAddress) {
       const resolveName = async () => {
         const resolvedAddress = await provider.resolveName(addressOrName);
         if (resolvedAddress !== null) {
@@ -61,6 +62,11 @@ export const useAddressOrENS = (
         }
       };
       resolveName();
+    } else {
+      setENS(false);
+      setError(true);
+      setChecksummedAddress(undefined);
+    }
   }, [provider, addressOrName, urlFixer]);
 
   return [checksummedAddress, isENS, error];