options object get mutated

[mpodolsk]

Prerequisites

• I have written a descriptive issue title
• I have searched existing issues to ensure the bug has not already been reported

Mongoose version

7.0.3

Node.js version

18.15.0

MongoDB server version

5.0

Typescript version (if applicable)

No response

Description

when creating mongo connection we pass a connection string and options object
in this case the options object gets mutated
My code is taking options from node-config which properties make it immutable. This results in crash when mongoose is trying to mutate the passed object.

mpodolsk$ node bug.mjs
/node_modules/mongoose/lib/helpers/processConnectionOptions.js:49
  opts.config = { autoIndex: false };
              ^

TypeError: Cannot add property config, object is not extensible

Steps to Reproduce

import mongoose from "mongoose";
const opts = Object.preventExtensions({});
await mongoose.connect('mongodb+srv://x:[email protected]/db?retryWrites=true&w=majority&readPreference=secondaryPreferred', opts);

Expected Behavior

it copies the properties needed and uses them without modding the passed object