Prefetching is included in a W3C spec under the name Resource Hints. It is implemented in Firefox, Chrome, IE 11, Edge, Opera after 12.1, and the Android Browser from 4.4.4, see the caniuse prefetch page for more and up-to-date details. Also see the caniuse and spec pages for related technologies (supported browsers afterwards are retrieved … Read more
preload <link rel=”preload”> tells the browser to download and cache a resource (like a script or a stylesheet) as soon as possible. It’s helpful when you need that resource a few seconds after loading the page, and you want to speed it up. The browser doesn’t do anything with the resource after downloading it. Scripts … Read more
In my case, I had Jupyter notebook extension installed. So, I did ctrl+shift+P and did Reload window; resolved! In case you just don’t see the bar without any error: disable Jupyter notebook renderers extension, test, and then re-enable it
Your problem is that Audio objects don’t support the ‘load’ event. Instead, there’s an event called ‘canplaythrough’ that doesn’t mean it’s fully loaded, but enough of it is loaded that at the current download rate, it will finish by the time the track has had enough time to play through. So instead of audio.onload = … Read more
What do you think about this approach: <link rel=”preload” href=”https://stackoverflow.com/questions/46787921/style.css” as=”style” onload=”this.rel=”stylesheet””> Resource: https://www.filamentgroup.com/lab/async-css.html
I kept getting the warning when trying to load preload a google font. Turns out I was missing the fact that the font was being loaded as a style from google. I solved this by setting the as=”style’ and then using rel=”stylesheet preload prefetch”. See code example below: <link as=”style” rel=”stylesheet preload prefetch” href=”https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500&display=swap” type=”text/css” … Read more
Preloading images using CSS only In the below code I am randomly choosing the body element, since it is one of the only elements guaranteed to exist on the page. For the “trick” to work, we shall use the content property which comfortably allows setting multiple URLs to be loaded, but as shown, the ::after … Read more