fix(clipboard): safely access allowedElements

arddor · marcbachmann · commit 6f67ea1ff90a · 2024-03-07T11:06:12.000+01:00
diff --git a/src/clipboard.js b/src/clipboard.js
@@ -125,7 +125,7 @@ function conditionalNodeWrap (child, content, options) {
 // returns string of concatenated attributes e.g. 'target="_blank" rel="nofollow" href="/test.com"'
 function filterAttributes (nodeName, node) {
   return Array.from(node.attributes).reduce((attributes, {name, value}) => {
-    if (allowedElements[nodeName][name] && value) {
+    if (allowedElements[nodeName]?.[name] && value) {
       return `${attributes} ${name}="${value}"`
     }
     return attributes

Original file line number	Diff line number	Diff line change
`@@ -125,7 +125,7 @@ function conditionalNodeWrap (child, content, options) {`
`125`	`125`	`// returns string of concatenated attributes e.g. 'target="_blank" rel="nofollow" href="/test.com"'`
`126`	`126`	`function filterAttributes (nodeName, node) {`
`127`	`127`	`return Array.from(node.attributes).reduce((attributes, {name, value}) => {`
`128`		`- if (allowedElements[nodeName][name] && value) {`
	`128`	`+ if (allowedElements[nodeName]?.[name] && value) {`
`129`	`129`	return `${attributes} ${name}="${value}"`
`130`	`130`	`}`
`131`	`131`	`return attributes`