Incorrectly add "^" before "&" in url query strings

[JackCai1206]

I haven't really looked into index.js for this problem, but this doesn't occur on all urls. This only occurs when I have a space in the url I am trying to open.
To reproduce this issue on windows 10, do opn('https://www.google.com/#q=12 3&*', {app: 'Chrome'}) and the url in the browser will be https://www.google.com/#q=12 3^&*, however, if I do opn('https://www.google.com/#q=123&*', {app: 'Chrome'}) the url opened in the browser is not modified.
I noticed there is a regex replacement target.replace(/&/g, '^&') in index.js, but im not sure why it doesn't replace all the &s with ^&