2 files changed, 3 insertions, 1 deletions
diff --git a/packages/website/ts/components/inputs/allowance_toggle.tsx b/packages/website/ts/components/inputs/allowance_toggle.tsx
index 7fe303cf4..3d353d87c 100644
--- a/packages/website/ts/components/inputs/allowance_toggle.tsx
+++ b/packages/website/ts/components/inputs/allowance_toggle.tsx
@@ -67,6 +67,7 @@ export class AllowanceToggle extends React.Component<AllowanceToggleProps, Allow
     private async _onToggleAllowanceAsync(): Promise<void> {
         if (this.props.userAddress === '') {
             this.props.dispatcher.updateShouldBlockchainErrDialogBeOpen(true);
+            return;
         }
 
         this.setState({
diff --git a/packages/website/ts/components/portal.tsx b/packages/website/ts/components/portal.tsx
index ad437acdb..7df340f45 100644
--- a/packages/website/ts/components/portal.tsx
+++ b/packages/website/ts/components/portal.tsx
@@ -121,8 +121,9 @@ export class Portal extends React.Component<PortalAllProps, PortalAllState> {
             });
         }
         if (nextProps.userAddress !== this.state.prevUserAddress) {
+            const newUserAddress = _.isEmpty(nextProps.userAddress) ? undefined : nextProps.userAddress;
             // tslint:disable-next-line:no-floating-promises
-            this._blockchain.userAddressUpdatedFireAndForgetAsync(nextProps.userAddress);
+            this._blockchain.userAddressUpdatedFireAndForgetAsync(newUserAddress);
             this.setState({
                 prevUserAddress: nextProps.userAddress,
             });