block6.js

const createElementBackup = document.createElement
document.createElement = function(...args) {
    // If this is not a script tag, bypass
    if(args[0].toLowerCase() !== 'script')
        // Binding to document is essential
        return createElementBackup.bind(document)(...args)

    const scriptElt = createElementBackup.bind(document)(...args)

   // Do some magic, see below

    return scriptElt
}