Fix #4277 (#5556)

2017-05-05 10:00:31 +02:00
parent eb316fcb9c
commit d4dc58eafe
2 changed files with 10 additions and 3 deletions
--- a/js/src/views/Contract/contract.js
+++ b/js/src/views/Contract/contract.js
@@ -101,8 +101,14 @@ class Contract extends Component {
    const { api } = this.context;
    const { subscriptionId, blockSubscriptionId, contract } = this.state;

-    api.unsubscribe(blockSubscriptionId);
-    contract.unsubscribe(subscriptionId);
+    if (blockSubscriptionId >= 0) {
+      api.unsubscribe(blockSubscriptionId);
+    }
+
+    if (subscriptionId >= 0) {
+      contract.unsubscribe(subscriptionId);
+    }
+
    this.props.setVisibleAccounts([]);
  }