Speculation Rules Script

speculationrules.js

if (HTMLScriptElement.supports?.('speculationrules')) {
    const specScript = document.createElement('script')
    specScript.type = 'speculationrules'
    const specRules = {
        prerender: [{
            urls: ['/next.html'],
        }, ],
    }
    specScript.textContent = JSON.stringify(specRules)
    document.body.append(specScript)
}