I try to use the amp-img srcset to speed up my webpage as follow:
<amp-img src=img/LOGO1.jpg srcset="img/LOGO1.jpg 1080w, img/LOGO414.jpg 414w" alt=lock width="985" height="265" layout=responsive></amp-img>
the problem is it can work when I change the browser width on desktop, but I check with my phone, the browser always show the "LOGO1.jpg".
How can I fix this?
Please check my code, you need to write proper tag
<amp-img src="img/LOGO1.jpg" srcset="img/LOGO1.jpg 1080w, img/LOGO414.jpg 414w" alt="lock" width="985" height="265" layout="responsive"></amp-img>