Iframe youtube not working

Youtube iframe autoplay not working

<iframe id="existing-iframe-example"
          width="640" height="360"
          src="https://www.youtube.com/embed/-SFcIUEvNOQ?autoplay=1&mute=1&enablejsapi=1"
          frameborder="0"
          style="border: solid 4px #37474F"
          ></iframe>

Source: stackoverflow.com

Iframe youtube not working

<iframe width="560" height="315" src="https://www.youtube.com/embed/ZwKhufmMxko" frameborder="0" allowfullscreen></iframe>

Source: stackoverflow.com

Similar codes

3 votes160 views2 answers
Basico html
Html
1 vote181 views1 answer
How to quote stuf in htl
Html
111 votes215 views6 answers
How to put images in html
Html
0 vote155 views1 answer
Uncaught TypeError: Cannot read property 'value' of null at HTMLButtonElement.<anonymous>
Html
1 vote167 views1 answer
Html games for mobile
Html
22 votes195 views3 answers
Basic html boilerplate
Html
25 votes256 views6 answers
Responsive navbar bootstrap 4
Html
1 vote170 views1 answer
Instagram post iframe
Html
24 votes153 views6 answers
Js comments
Html
7 votes165 views3 answers
Enter key vue
Html