Fix up!

facebook · Feb 26, 2020 · 1eaa34b · 1eaa34b
1 parent caa2ccc
commit 1eaa34b
Showing 1 changed file with 11 additions and 9 deletions.
diff --git a/packages/docusaurus-theme-classic/src/include-additional-languages.js b/packages/docusaurus-theme-classic/src/include-additional-languages.js
@@ -6,17 +6,19 @@
  */
 
 import Prism from 'prism-react-renderer/prism';
-
+import ExecutionEnvironment from '@docusaurus/ExecutionEnvironment';
 import siteConfig from '@generated/docusaurus.config';
 
-const {
-  themeConfig: {prism: {additionalLanguages = []} = {}},
-} = siteConfig;
+if (ExecutionEnvironment.canUseDOM) {
+  const {
+    themeConfig: {prism: {additionalLanguages = []} = {}},
+  } = siteConfig;
 
-window.Prism = Prism;
+  window.Prism = Prism;
 
-additionalLanguages.forEach(lang => {
-  require(`prismjs/components/prism-${lang}`); // eslint-disable-line
-});
+  additionalLanguages.forEach(lang => {
+    require(`prismjs/components/prism-${lang}`); // eslint-disable-line
+  });
 
-delete window.Prism;
+  delete window.Prism;
+}