Optional chaining to avoid indexing iframe before load.

kentwalters · kentwalters · commit 46620a5bf4de · 2021-10-27T17:40:41.000-07:00
diff --git a/src/components/Retool.js b/src/components/Retool.js
@@ -95,7 +95,7 @@ class Retool extends React.Component {
   }
 
   handle = (event) => {
-    if (!this.iframe.contentWindow) return
+    if (!this.iframe?.contentWindow) return
     if (event.data.type === "PARENT_WINDOW_QUERY") {
       this.createOrReplaceWatcher(
         event.data.selector,

Original file line number	Diff line number	Diff line change
`@@ -95,7 +95,7 @@ class Retool extends React.Component {`
`95`	`95`	`}`
`96`	`96`
`97`	`97`	`handle = (event) => {`
`98`		`- if (!this.iframe.contentWindow) return`
	`98`	`+ if (!this.iframe?.contentWindow) return`
`99`	`99`	`if (event.data.type === "PARENT_WINDOW_QUERY") {`
`100`	`100`	`this.createOrReplaceWatcher(`
`101`	`101`	`event.data.selector,`