Neopets: Shop Stock Pricer

Neopets: Shop Stock Pricer.user.js

// ==UserScript==
// @name         Neopets: Shop Stock Pricer
// @namespace    http://lince.somnolescent.net
// @version      0.2
// @description  This script lets you scrape JellyNeo for prices on the shop stock page. Does not auto-submit or otherwise automate activities, though it does send a bunch of search requests to JN when run. Use at your own risk.
// @author       metalynx
// @match        http://www.neopets.com/market.phtml?order_by=id*
// @match        http://www.neopets.com/market.phtml?type=your*
// @icon         https://www.google.com/s2/favicons?domain=neopets.com
// @require      https://cdn.jsdelivr.net/npm/axios@~0.21.1/dist/axios.min.js
// @require      https://cdn.jsdelivr.net/npm/axios-userscript-adapter@~0.1.2/dist/axiosGmxhrAdapter.min.js
// @grant        GM.xmlHttpRequest
// @grant        GM_setValue
// ==/UserScript==

(function() {
    'use strict';

    let offset = -5 // increase/decrease prices a fixed amount
    let minprice = 1

    console.log(axios.defaults.adapter);
    axios.defaults.adapter = axiosGmxhrAdapter;

    let forms = document.getElementsByTagName('form')
    for (let i = 0; i < forms.length; i++) {
        if ((forms[i].action) == 'http://www.neopets.com/process_market.phtml') {
            var form = forms[i];
            break
        }
    }

    var node = document.createElement('a')
    node.href = '#autoprice'
    node.setAttribute('id', 'autoprice')
    var textnode = document.createTextNode(" >>")
    node.appendChild(textnode);

    form.getElementsByTagName('td')[4].appendChild(node);

    node.onclick = function(){
        document.getElementById("autoprice").remove()

        let rows = form.getElementsByTagName('tr')

        for (let i = 1; rows.length - 1; i++) { // index is set to 1 to skip the header row "Name", goes to the index just before the bottom Update/Remove All row
            let item = rows[i].getElementsByTagName('b')[0].innerHTML
            let pricebox = rows[i].getElementsByTagName('input')[2]

            //console.log(item + ' is currently set to ' + pricebox.value + ' NP')

            axios.get('https://items.jellyneo.net/search/?name=' + item.replace(' ', '+') + '&name_type=3').then(res => {
                let parser = new DOMParser()
                let doc = parser.parseFromString(res.data, 'text/html')

                let links = doc.getElementsByTagName('a')
                let price = 0

                for (let i = 1; i < links.length - 1; i++) {
                    if (links[i].className == 'price-history-link') {
                        price = parseInt(links[i].innerHTML.replace(',', '').replace(' NP', ''))
                        break
                    }
                }

                console.log('JN PRICE: ' + price + ' NP (' + item + ')')

                pricebox.setAttribute('value', Math.max(minprice, price += offset))
            });
        }
    }

})();

Figured it out. I'm dumb.
Not only do you have to change http to https in lines 7 and 8, you also have to do it in line 27.