Ran

I tried to refresh the screen on Firefox developer and got the same message. So it is not limited to Chrome Developer.

@chrisdavidmills apologies for taking so long to get back. I followed the instructions on MDN and it worked. I did pick up some syntax errors from looking at the console....

I was getting errors on mistyping prompt i.e. spelt it promt so got an undefined variable error I believe. There was something else which was also incorrectly spelled which the...

> Maybe you could start with the addition we discussed above, as a test? OK, let me have a look this weekend. I have never done this before so will...

@rachelandrew I think I misunderstood what was expected. I am specifically looking at the [srcset-resolutions.html](https://mdn.github.io/learning-area/html/multimedia-and-embedding/responsive-images/srcset-resolutions.html). This is in the [Resolution switching: Same size, different resolutions](https://developer.mozilla.org/en-US/docs/Learn/HTML/Multimedia_and_embedding/Responsive_images#resolution_switching_same_size_different_resolutions) section. I expected the images...