Use modern HTML5 <!DOCTYPE>, as discussed in jestjs#3299

aaronabramov · Aug 7, 2017 · 2384e33 · 2384e33
1 parent 3f6422d
commit 2384e33
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/packages/jest-environment-jsdom/src/index.js b/packages/jest-environment-jsdom/src/index.js
@@ -24,7 +24,7 @@ class JSDOMEnvironment {
 
   constructor(config: ProjectConfig): void {
     // lazy require
-    this.document = JSDom.jsdom(/* markup */ undefined, {
+    this.document = JSDom.jsdom('<!DOCTYPE html>', {
       url: config.testURL,
     });
     const global = (this.global = this.document.defaultView);