How to avoid Flash of Unstyled Text (FOUT) even with Web Font Loader?

Question

I\'m using a custom font which is large ~100kb. As you can imagine, the browser text is flashing from invisible to visible text. I therefore started using the webfontloader:

Answer 1

Consider experimenting with the Web Font Loader library which provides an event system that allows you to control the appearance of your page dynamically as fonts are loaded.

Here

Answer 2

after ages messing around i came up with this:

add a class in your css file:

.showMe {
  filter: opacity(1) !important;
  transition: filter 878ms ease-in;
}

then add a javascript tag at the very end of your document just before the closing body tag.

include in the file

setTimeout(function() {
  let h1 = document.getElementsByTagName('h1')[0];
  h1.classList.add('showMe');
}, 288);

Seems to be working for me as i was having the same issue. Can play around with the timing of setTimeout to optimize which is the number at the end (in milliseconds). You could also add a transition onto this so it fades in more smoothly & also add will-change:auto; or will-change:filter; but I'll let you mess around and see what suits you. forgot to mention you need to add style="filter:opacity(0);" on the h1 in your html mark-up.

As an alterative you could have the text set to opacity 0 in your html and then use the .animate() api to fade the text in slowly when the page has fully loaded.

Answer 3

As pointed in this link https://binarapps.com/blog/fout-with-web-font-loader/, you can hide the text until it's ready to be shown, like this:

body,
button {
   font-weight: 400;
   font-size: 14px;
   font-family: sans-serif;
   font-style:  normal;
   visibility: hidden;
}

.wf-active body,
.wf-active button {
    font-weight: 400;
    font-size: 14px;
    font-family: 'Inter UI';
    font-style:  normal;
    visibility: visible;
}

You can also add a transition on the opacity and a loader that is only visible when the body has the .wf-loading class (see the link for further explanations on these suggestions).