HTML5 video autoplay in Dreamweaver just won't work

[ApolloGT]

Hi all,

I was able to get two videos, one on each page to work but the third page it won't. Not sure what the difference was. video is mp4 and I added the code manually autoplay=""

that didn't work.

selecting the box for autoplay in the properties for the video still it won't work.

what else am i missing?

thanks a bunch

[Jon Fritz]

Without seeing the entire code (there could be an error elsewhere causing issues like a missing doctype declaration at the top, visit http://validator.w3.org/nu to get a listing), I would try getting rid of the ="" part.

Under the html5 doctype, simply having "autoplay" in the tag enables autoplay, as in...

<video autoplay controls>
  <source src="MyVideo.mp4" type="video/mp4">
  Your browser does not support the video tag.
</video>

The above video will autoplay and show controls. It will also display a message for users of ancient junk browsers that don't support html5 standards.

[Nancy OShea]

I  have autoplay blockers as do most people.  Some devices block autoplay by default when video contains an audio track.

Try this code: 

<video title="Video Title" poster="path/your_poster_image.jpg" controls="controls" muted="muted" autoplay="autoplay" >
<source src="path/your_video.mp4" type="video/mp4">
</video>

Replace path/your_poster_image.jpg and path/your_video.mp4 with your own paths/filenames.

Hope that helps.

[Nancy OShea]

1. Upload the MP4 video and HTML page to your remote server to test. 
2. Test on multple devices and browsers.
3. You may find that what doesn't work in one browser works just fine on others.

https://caniuse.com/?search=autoplay

Failing that, contact your hosting provider to ensure the server is configured to support <video> and <audio> MIME types.

If your hosting plan includes access to cPanel, you can add MIME Types yourself.

AddType audio/mp4 .mp4 .m4a
AddType audio/mpeg .mp1 .mp2 .mp3 .mpg .mpeg
AddType video/mp4 .mp4 .m4v