1 files changed, 7 insertions, 0 deletions

diff --git a/viewer/babel.config.js b/viewer/babel.config.js
new file mode 100644
index 0000000..7102a6e
--- /dev/null
+++ b/viewer/babel.config.js
@@ -0,0 +1,7 @@
+module.exports = {
+  presets: ["@vue/cli-plugin-babel/preset"],
+  plugins: [
+    '@babel/plugin-proposal-optional-chaining',
+    '@babel/plugin-proposal-nullish-coalescing-operator',
+  ],
+};