Custom Inline Script with Docusaurus

I'm trying to add the wowhead tooltips to a docusaurus page.

The wowhead documentation suggests you need to add the following to your <head> section:

<script>const whTooltips = {colorLinks: true, iconizeLinks: true, renameLinks: true};</script>
<script src="https://wow.zamimg.com/widgets/power.js"></script>

I can add the https://wow.zamimg.com/widgets/power.js fine using the scripts configuration option which works fine with defer or async:

module.exports = {
  // Snipped rest of configuration
  scripts: [
    {
      src:
        'https://wow.zamimg.com/widgets/power.js',
      defer: true,
    },
  ],

For the inline portion <script>const whTooltips = {colorLinks: true, iconizeLinks: true, renameLinks: true};</script> I have tried using a <Head> component in my index.js <Layout> section and had no success.

How can I add this inline script properly to docusaurus so it loads before the wowhead script?

Solution

Using the advice from D.Kastier, I successfully solved my problem, granted it wasn't very elegant.

To load the script properly, and have it update after the page initially loads:

     injectHtmlTags() {
       return {
         headTags: [
           // https://www.wowhead.com/tooltips
           {
             tagName: 'script',
             innerHTML: `
               const whTooltips = {colorLinks: true, iconizeLinks: true, renameLinks: true};

               document.addEventListener('readystatechange', event => {
                 if (event.target.readyState === "complete") {
                   console.log('Updating tooltips from plugin');
                   window.$WowheadPower.refreshLinks();
                 }
                });
             `,
           },
           {
             tagName: 'script',
             attributes: {
               defer: true,
               src: 'https://wow.zamimg.com/widgets/power.js',
             },
           },
         ],
       };
     },

Then to update the tooltips each time the page changes:

    onRouteUpdate({location}) {
      setTimeout(function() {           
          window.$WowheadPower.refreshLinks(); 
        }, 0);
    },