需要页面 javascript 的用户脚本在 JS 控制台中运行，但不在 Tampermonkey 中运行

Question

我有this userscript (see below), for http://multiplayerpiano.com.
在控制台中，该脚本按预期运行，但当用作 Tampermonkey 的脚本时，它就不会运行。

我不知道为什么。这些命令工作正常，但第 21 行和第 30 行之间的禁止功能没有任何作用。即使在详细模式下，也不会抛出任何错误。将不胜感激。

是否与 if 语句中的 window.pass1 有关，可能应该只是 pass1 而没有 window？

// ==UserScript==
// @name Josh's MPP Room Locker
// @description Lock an MPP room and only allow entrance if the name is set to the passphrase
// @namespace Copyright 2018 SYZYGY-DEV333; licensed under Apache v2
// @version 0.1
// @author Josh (SYZYGY-DEV333)
// @match http://www.multiplayerpiano.com/*
// @match https://www.multiplayerpiano.com/*
// @match http://ourworldofpixels.com/piano/*
// @grant none
// ==/UserScript==

var pass = "passphrase";

var locked = "false";

function kickban(id, ms) {
    MPP.client.sendArray([{m: "kickban", _id: id, ms: ms}]);
}

MPP.client.on("participant added", function(pp) {
    if (locked == "true") {
        if (MPP.client.channel.crown.userId == MPP.client.getOwnParticipant()._id) {
            if (pp.name == window.pass) {
            } else {
                kickban(pp._id, 10000);
            }
        }
    }
});

MPP.client.on('a', function(m) {
    if (m.a == '-lock') {
        if (m.p._id == MPP.client.getOwnParticipant()._id) {
            window.locked = "true";
            MPP.chat.send("Room Locked.");
        }
    } else if (m.a == '-unlock') {
        if (m.p._id == MPP.client.getOwnParticipant()._id) {
            window.locked = "false";
            MPP.chat.send("Room Unlocked.");
        }
    } else if (m.a.startsWith('-setpass')) {
        if (m.p._id == MPP.client.getOwnParticipant()._id) {
            window.pass = m.a.slice(9);
            MPP.chat.send("Passphrase set to: "+m.a.slice(9));
        }
    } else if (m.a == '-help') {
        if (m.p._id == MPP.client.getOwnParticipant()._id) {
            MPP.chat.send("[[ Josh's MPP Room Locker v0.1 ]]");
            MPP.chat.send("-lock -- Locks room.");
            MPP.chat.send("-unlock -- Unlocks room.");
            MPP.chat.send("-setpass [pass] -- sets a passphrase for entry.");
            MPP.chat.send("All users must have this as their name when entering the room.");
            MPP.chat.send("-help -- displays this help message.");
        }
    }
});

Answer 1

三件事：

是的，window.pass和window.locked（共4个地方）是错误的。您将这些设置为脚本中的变量，脚本在不同的范围内运行。
令我惊讶的是该脚本竟然能正常工作，因为该脚本可以运行之前 MPP.client 是 defined/initialized。
正如 Jaromanda X 指出的那样，对布尔值使用布尔值，而不是字符串。

因此，稳健的做法是等待目标页面函数存在，然后再触发依赖于它们的代码。

这是重构后的用户脚本以执行所有这些操作：

// ==UserScript==
// @name Josh's MPP Room Locker
// @description Lock an MPP room and only allow entrance if the name is set to the passphrase
// @namespace Copyright 2018 SYZYGY-DEV333; licensed under Apache v2
// @version 0.5
// @author Josh (SYZYGY-DEV333)
// @match http://www.multiplayerpiano.com/*
// @match https://www.multiplayerpiano.com/*
// @match http://ourworldofpixels.com/piano/*
// @grant none
// ==/UserScript==

var pass = "passphrase";
var locked = false;

var initTmr = setInterval ( () => {
    if (typeof MPP === "object"  &&  typeof MPP.client === "object") {
        clearInterval (initTmr);
        startMyCode ();
    }
}, 200); 

function kickban (id, ms) {
    MPP.client.sendArray([{m: "kickban", _id: id, ms: ms}]);
}

function startMyCode () {
    MPP.client.on("participant added", function(pp) {
        if (locked === true) {
            if (MPP.client.channel.crown.userId == MPP.client.getOwnParticipant()._id) {
                if (pp.name == pass) {
                } else {
                    kickban(pp._id, 10000);
                }
            }
        }
    });
    MPP.client.on('a', function(m) {
        if (m.a == '-lock') {
            if (m.p._id == MPP.client.getOwnParticipant()._id) {
                locked = true;
                MPP.chat.send("Room Locked.");
            }
        } else if (m.a == '-unlock') {
            if (m.p._id == MPP.client.getOwnParticipant()._id) {
                locked = false;
                MPP.chat.send("Room Unlocked.");
            }
        } else if (m.a.startsWith('-setpass')) {
            if (m.p._id == MPP.client.getOwnParticipant()._id) {
                pass = m.a.slice(9);
                MPP.chat.send("Passphrase set to: "+m.a.slice(9));
            }
        } else if (m.a == '-help') {
            if (m.p._id == MPP.client.getOwnParticipant()._id) {
                MPP.chat.send("[[ Josh's MPP Room Locker v0.1 ]]");
                MPP.chat.send("-lock -- Locks room.");
                MPP.chat.send("-unlock -- Unlocks room.");
                MPP.chat.send("-setpass [pass] -- sets a passphrase for entry.");
                MPP.chat.send("All users must have this as their name when entering the room.");
                MPP.chat.send("-help -- displays this help message.");
            }
        }
    });
}

需要页面 javascript 的用户脚本在 JS 控制台中运行，但不在 Tampermonkey 中运行

Userscript, that requires page's javascript, runs in JS console but not in Tampermonkey

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