JWT decoder used for Authflow

jwt-decoder.js

// 💡 Tip: need to decode with node.js? Use the @authflow-js/verify npm module

function decryptJWT(e) {
    function b64(e) {
        return decodeURIComponent(Array.prototype.map.call(atob(e), function (e) {
            return "%" + ("00" + e.charCodeAt(0).toString(16)).slice(-2)
        }).join(""))
    }
    try {
        const r = e
                .split(".")[0]
                .replace("-", "+")
                .replace("_", "/"),
            b64
        c = (JSON.parse(b64(r)), e.split(".")[1].replace("-", "+").replace("_", "/"));
        return JSON.parse(b64(c))
    } catch (e) {
        throw new Error("Invalid JWT")
    }
}

Possibly the encoding algorithm used in that JWT is different than the one the function tests for, apologies!