一个网页调用一个firebase函数，该函数应该从firestore集合中获取多条记录，所有内容都会正常运行，但不会返回任何数据。当我直接在页面中运行查询时（不是通过函数），将返回正确的数据。
在网页中：

var getUserConfigFiles = firebase.functions().httpsCallable('getUserConfigFiles');

getUserConfigFiles()
    .then((result) => {
         console.log("Yay - Firebase result ===>",result);
    })
    .catch((error) => {
        console.warn("error",error.code,error.message,error.details)
    });

在index.js中：

const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp();

const cors = require('cors')({origin: true});
const db = admin.firestore();

然后函数本身：

exports.getUserConfigFiles = functions.https.onCall((data, context) => {
    if (!context.auth) {
        return {"status": "error", "code": 499, "message": "The function must be called while authenticated"};
    }

    const uid = context.auth.uid;
    const email = context.auth.token.email;

    var outcome = {"status": "OK", "code": 200, "requestor": uid, "email": email, "configfiles":[]};

    // search on either the user's userid or their email
    outcome.searcharray = [uid];
    if (email) {
        outcome.searcharray.push(email);
    }

    return db.collection("configfiles").where("memberAttached", "array-contains-any", outcome.searcharray)
        .get()
            .then((querySnapshot) => {
                querySnapshot.forEach((doc) => {
                    outcome.configfiles.push({"tokenid": doc.id, "data-all": doc.data()});
                })

                // next row is returning the object just to see if it's there
                outcome.querySnapshot = querySnapshot;
                // 

                return (outcome);
            })
            .catch((error) => {
                return ({"status": "error", "code": 402, "message": error,"requestor": uid});
            });

 });

一切正常，结果返回querysnapshot。除了，没有数据，.configfiles应该有大约一百行。如果我运行 db.collection("configfiles").where("memberAttached... 在web页面中，返回数据。

我已经寻找并尝试了很多方法，但我显然遗漏了一些基本的东西。有人能帮忙吗？