responsive images srcset not working

Question

I\'ve been trying to implement the new srcset approach to responsive images, using the following HTML

Answer 1

For anyone using Chrome DevTools sidebar, you can tell Chrome to disable the cache when DevTools is open. Changing your viewport and refreshing will then serve the correct responsive image if it's giving you the largest (cached) image all the time.

1. Open DevTools (F12)
2. Go to Settings
3. Scroll down to Network
4. Check Disable cache (while DevTools is open)