Added a default for classMap. Fixes #1137. (#1157)

When the classMap is accessed, it is undefined, causing this look up to fail. Defaulting it to an empty object provides the right logic. https://github.com/PrismJS/prism/blob/16ce4b336d625e13065bfc12ab6d13ac862d6f50/plugins/custom-class/prism-custom-class.js#L25
PrismJS · Jul 20, 2017 · 5400af9 · 5400af9
1 parent 601c47f
commit 5400af9
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diff --git a/plugins/custom-class/prism-custom-class.js b/plugins/custom-class/prism-custom-class.js
@@ -7,7 +7,9 @@ if (
 	return;
 }
 
-var options = {};
+var options = {
+	classMap: {}
+};
 Prism.plugins.customClass = {
 	map: function map(cm) {
 		options.classMap = cm;

diff --git a/plugins/custom-class/prism-custom-class.min.js b/plugins/custom-class/prism-custom-class.min.js