diff --git a/adapters/oidc/js/src/main/resources/keycloak.js b/adapters/oidc/js/src/main/resources/keycloak.js
index 7043d8e..a469c34 100755
--- a/adapters/oidc/js/src/main/resources/keycloak.js
+++ b/adapters/oidc/js/src/main/resources/keycloak.js
@@ -1228,7 +1228,7 @@
break;
default:
if (responseMode != 'query' || !handleQueryParam(param, queryParams[param], oauth)) {
- oauth.newUrl += (oauth.newUrl.indexOf('?') == -1 ? '?' : '&') + param + '=' + queryParams[param];
+ oauth.newUrl += (oauth.newUrl.indexOf('?') == -1 ? '?' : '&') + param + '=' + encodeURIComponent(queryParams[param]);
}
break;
}