Actuall pass our proxy makeRegistrationUrl

src/components/structures/MatrixChat.js

@@ -1145,7 +1145,7 @@ module.exports = React.createClass({
                     teamServerConfig={this.props.config.teamServerConfig}
                     customHsUrl={this.getCurrentHsUrl()}
                     customIsUrl={this.getCurrentIsUrl()}
-                    makeRegistrationUrl={this.props.makeRegistrationUrl}
+                    makeRegistrationUrl={this._makeRegistrationUrl}
                     defaultDeviceDisplayName={this.props.defaultDeviceDisplayName}
                     onLoggedIn={this.onRegistered}
                     onLoginClick={this.onLoginClick}