fix(gatsby-plugin-preact): fix fast-refresh

gatsbyjs · Feb 28, 2021 · 7f53f23 · 7f53f23
1 parent e95a9f8
commit 7f53f23
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/packages/gatsby/cache-dir/fast-refresh-overlay/index.js b/packages/gatsby/cache-dir/fast-refresh-overlay/index.js
@@ -54,7 +54,7 @@ function DevOverlay({ children }) {
  const [state, dispatch] = React.useReducer(reducer, initialState)
 
  React.useEffect(() => {
- const gatsbyEvents = window._gatsbyEvents
+ const gatsbyEvents = window._gatsbyEvents || []
  window._gatsbyEvents = {
  push: ([channel, event]) => {
  if (channel === `FAST_REFRESH`) {