Core: Prevent error from throwing when element does not have a parent…

…Node in highlightElement. Fix #1203
PrismJS · Nov 5, 2017 · c33be19 · c33be19
1 parent 1fd690d
commit c33be19
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Showing 3 changed files with 13 additions and 9 deletions.
diff --git a/components/prism-core.js b/components/prism-core.js
@@ -184,11 +184,13 @@ var _ = _self.Prism = {
 		// Set language on the element, if not present
 		element.className = element.className.replace(lang, '').replace(/\s+/g, ' ') + ' language-' + language;
 
-		// Set language on the parent, for styling
-		parent = element.parentNode;
+		if (element.parentNode) {
+			// Set language on the parent, for styling
+			parent = element.parentNode;
 
-		if (/pre/i.test(parent.nodeName)) {
-			parent.className = parent.className.replace(lang, '').replace(/\s+/g, ' ') + ' language-' + language;
+			if (/pre/i.test(parent.nodeName)) {
+				parent.className = parent.className.replace(lang, '').replace(/\s+/g, ' ') + ' language-' + language;
+			}
 		}
 
 		var code = element.textContent;

diff --git a/components/prism-core.min.js b/components/prism-core.min.js
diff --git a/prism.js b/prism.js
@@ -189,11 +189,13 @@ var _ = _self.Prism = {
 		// Set language on the element, if not present
 		element.className = element.className.replace(lang, '').replace(/\s+/g, ' ') + ' language-' + language;
 
-		// Set language on the parent, for styling
-		parent = element.parentNode;
+		if (element.parentNode) {
+			// Set language on the parent, for styling
+			parent = element.parentNode;
 
-		if (/pre/i.test(parent.nodeName)) {
-			parent.className = parent.className.replace(lang, '').replace(/\s+/g, ' ') + ' language-' + language;
+			if (/pre/i.test(parent.nodeName)) {
+				parent.className = parent.className.replace(lang, '').replace(/\s+/g, ' ') + ' language-' + language;
+			}
 		}
 
 		var code = element.textContent;