Fix setContent

Author: yuanchuan

lib/render/index.js

@@ -31,19 +31,19 @@ export async function render(code, options = {}) {
 
     switch (options.type) {
         case 'css': case 'cssd': case 'stdin': {
-            page.setContent(buildHTML(code, getCssDoodleLib()));
+            await page.setContent(buildHTML(code, getCssDoodleLib()));
             break;
         }
         case 'html': {
-            page.setContent(code);
+            await page.setContent(code);
             break;
         }
         case 'codepen': {
             await page.goto(code);
             const iframe = await page.$('iframe#result');
             if (iframe) {
                 const code = await page.evaluate(el => el.getAttribute('srcdoc'), iframe);
-                page.setContent(code, { waitUntil: 'networkidle0' });
+                await page.setContent(code, { waitUntil: 'networkidle0' });
             } else {
                 throw new Error('eroor: read CodePen failed');
             }