Docusaurus - how to open external links in new tab?
Question
I am using Docusaurus and would like to open external links in new tabs.
I would prefer to use code for this rather than the solution of writing html code in my markdown document as per this answer .
I have tried this answer :
[link](url){:target="_blank"}
As well as this answer :
[Google](https://google.com" target="_blank)
I think this post would probably do what I want, I tried adding the code to _index.js, but Docusaurus stopped building.
(function() {
var links = document.getElementsByTagName('a');
for (var i = 0; i < links.length; i++) {
if (/^(https?:)?\/\//.test(links[i].getAttribute('href'))) {
links[i].target = '_blank';
}
}
})();
I uploaded the JavaScript code to GitHub and added it to siteConfig.js :
// Add custom scripts here that would be placed in <script> tags.
scripts: [
"https://buttons.github.io/buttons.js",
"https://msdcanderson.github.io/docusaurus-open-link-new-tab.github.io/open-link-new-tab.js"
],
The script seems to load, but doesn't work as expected.
I expect a link written in Markdown to open in a new browser tab:
[the rmarkdown website](https://rmarkdown.rstudio.com)
Any ideas would be great - thanks
1 answers
solution1
4 ACCPTED 2019-05-01 17:49:08
Docusaurus maintainer here!
You're right that Docusaurus doesn't support this out of the box. The probable reason that your script above doesn't work is because Docusaurus injects the <script> tags are above the <body> and when the script runs, the <body> hasn't loaded and there are no <a> tags to operate on. Try wrapping your code in document.addEventListener('DOMContentLoaded', ...) like this:
document.addEventListener('DOMContentLoaded', function() {
var links = document.getElementsByTagName('a');
for (var i = 0; i < links.length; i++) {
if (/^(https?:)?\/\//.test(links[i].getAttribute('href'))) {
links[i].target = '_blank';
}
}
});
However, I recommend that you don't use that script and instead achieve the effect in a few other ways:
1. Remarkable Plugins
Customize this using Remarkable plugins. Remarkable is the Markdown engine that converts the Markdown to HTML.
This remarkable-extlink plugin seems to be what you need. Try adding it into your siteConfig! Refer to the siteConfig documentationhere .
// siteConfig.js
const extlink = require('remarkable-extlink');
const siteConfig = {
...
markdownPlugins: [
function(md) {
extlink(md, {
host: 'yourhost.com', // The hrefs that you DON'T want to be external
});
},
],
...
}
2. Remarkable Options
Remarkable supports making all links external by customizing the linkTarget option and Docusaurus exposes that in siteConfig (but isn't documented) and isn't working at the moment. I've submitted a PR to fix this, so look out for it in the next release. However, I wouldn't recommend this approach since it makes All your links open in new tab, not just the external ones.
3. Use HTML in your Markdown
Personally I would just use this option as it's the fastest. Also there's nothing wrong/bad about doing this and I love that I can fallback on HTML.
4. Write your own Remarkable Plugin
Write your own plugin that understands such a [link](url){:target="_blank"} syntax and generates the HTML that you want. This could be the best option if you don't want to use HTML but it requires the most effort.
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