The first thing to do will be to load the fonts at the bottom of the page. unpkg is not affiliated with or supported by npm, Inc. Particularly when there are several different typefaces and font weights. unpkg is an open source project built and maintained by Michael Jackson. These font requests have a negative impact on performance. No matter which of these methods is used an rule is available and can be detected by the FontFaceObserver script. So unpkg is also sponsored by Cloudflare which is an awesome CDN and serves 95 of unpkgs traffic from the cache, making unpkg extremely fast. Fonts can also be loaded via a style tag or from a theme or plugins stylesheet with an or rule. Most web font service require a script or stylesheet link as close to the top of the document head as possible, WordPress provides several ways to load different fonts: A link to a web-font service such may be included in the head directly, or via the wp_head() or wp_enqueue_script() hooks.
FOIT happens whenever the browser tries to render a font face that is not yet loaded. FOIT not only increases the liklihood that a user will simply leave the site but gives the user a negative impression that the site is generally lagging.
It varies between browsers and is most noticeable on slower connections. That can be up to 30 seconds in some versions of iOS Safari. When I use multiple fonts I add new FontFaceObserver objects as variables and to the Promise.all array. What is FOIT?įOIT, or flash of invisible text, is when a browser hides all text until the font is loaded or a specific time is reached.
#Unpkg fontfaceobserver install
It works with both self hosted fonts as well as those loaded using services such as Typekit and Google fonts. font font-face web font font load font events Install npm i fontfaceobserver Repository /bramstein/fontfaceobserver Homepage / Weekly Downloads 537,661 Version 2.3.0 License BSD-2-Clause Unpacked Size 33. To use it, add the boxicons.js file to the page: To use an icon, add the box-icon element to the location where the icon should be displayed: To use solid icons or logos add attribute type as solid or logo.
Unlike the Web Font Loader Font Face Observer uses scroll events to detect font loads efficiently and with minimum overhead.įont Face Observer is one of several techniques for optimising font-loading and preventing FOIT (flash of invisible text) which can be created by the browser when there is a delay in loading a font. Boxicons includes a Custom Element that makes using icons easy and efficient. It does not limit you in any way in where, when, or how you load your webfonts. Next you will have to call the script from a js file in your theme or plugin. It can also cloned or downloaded directly into your theme or plugin. The script can be loaded via npm or your package manager of choice. It will monitor when a webfont is loaded and notify you. First include the fontfaceobserver script. All rights reserved.Font Face Observer is a small loader and monitor (3.5KB minified and 1.3KB gzipped) compatible with any webfont service. Using the Promise polyfill adds roughly 1.4KB (500 bytes gzipped) to the file size. If you do not have an existing Promise polyfill you should use fontfaceobserver.js which includes a small Promise polyfill. Browser supportįontFaceObserver has been tested and works on the following browsers:įont Face Observer is licensed under the BSD License. If you use your own Promise polyfill you just need to include in your project. There might be a problem with your internet connection. Find out the best CDN to use with fontfaceobserver 1.7.3 or use multiple CDN as fallback. Using the Promise polyfill adds roughly 1.4KB (500 bytes gzipped) to the file size. fontfaceobserver CDN by jsDelivr - A CDN for npm and GitHub Package fontfaceobserver was not found. 2 CDN to use with FONTFACEOBSERVER 1.7.3. If you use your own Promise polyfill you just need to include in your project. It'll export a global FontFaceObserver that you can use to create new instances.įont Face Observer uses Promises in its API, so for browsers that do not support promises you'll need to include a polyfill. You can do this easily using the following setup: Add the umd (or dist) directory to your. All you need to do is include your UMD build in your npm package (not your repo, that's different).
#Unpkg fontfaceobserver code
If you're not using npm, grab fontfaceobserver.js or (see below) and include it in your project. Recently, I discovered that I can use the library and unpkg to quickly include an icon available on Github. Workflow For npm package authors, unpkg relieves the burden of publishing your code to a CDN in addition to the npm registry. An example collection of font data with additional metadata, // in this case “color.” var exampleFontData = )
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