check dom variables in server side environment

lhapaipai · Sep 20, 2021 · 687fa56 · 687fa56
1 parent 37bcaf5
commit 687fa56
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/src/util/browser.ts b/src/util/browser.ts
@@ -41,7 +41,7 @@ const exported = {
         return linkEl.href;
     },
 
-    hardwareConcurrency: navigator && navigator.hardwareConcurrency || 4,
+    hardwareConcurrency: typeof navigator !== 'undefined' && navigator && navigator.hardwareConcurrency || 4,
 
     get prefersReducedMotion(): boolean {
         if (!matchMedia) return false;

diff --git a/src/util/dom.ts b/src/util/dom.ts
@@ -38,7 +38,7 @@ DOM.createNS = function (namespaceURI: string, tagName: string) {
     return el;
 };
 
-const docStyle = window.document && window.document.documentElement.style;
+const docStyle = typeof window !== 'undefined' && window.document && window.document.documentElement.style;
 
 function testProp(props) {
     if (!docStyle) return props[0];