Local HTML file request

[sylumer]

Not sure what you mean by result. If you need to render some HTML, use a webview. You can query content from a webview too.

document.getElementById on Scriptable

You can do what you want in Scriptable! Just create a WebView, load your url in there and await that. Then use the executeJavascript function (or how it is called) to retrieve the value in the DOM. There you can use the document variable.