joeblack.git

diff --git a/index.html b/index.html
index 8e4d011e1c61102ed2265d6b64719e65ea4aa810..9dae524c6fe7e0d30d37412a89813f8f4a51b0a9 100644
--- a/index.html
+++ b/index.html
@@ -32,11 +32,14 @@ 					return;
 				}
 				fetch('payload').then (payloadResponse => {
 					if (!payloadResponse.ok) {
-						alert("Nie można pobrać sejfu");
-						return;
+						return "ERR: Nie można pobrać sejfu";
 					}
 					return payloadResponse.text();
 				}).then(payload => {
+					if (payload.startsWith('ERR: ') {
+						alert(payload);
+						return;
+					}
 					let secrets = decryptPayload(key, payload, isPaperKey);
 					if (secrets.startsWith('ERR: ')) {
 						alert(secrets);