Source script with user input

I have a script that is something like

#!/bin/bash
echo -n "User: "
read -e username
echo -n "Password: "
read -es password

export http_proxy="http://$username:$password@localhost:40080"
export https_proxy="http://$username:$password@localhost:40080"

$@

unset http_proxy
unset https_proxy

It reads the user/pass, export the proxy, run the command I need the proxy then clean it. It works. But I tried making this:

#!/bin/bash
echo -n "User: "
read -e username
echo -n "Password: "
read -es password

export http_proxy="http://$username:$password@localhost:40080"
export https_proxy="http://$username:$password@localhost:40080"

So I could source proxyscript (and be able to use the proxy for a whole session without needing to put user/pass everytime), it waits for input, but exports http://:@localhost:40080 --- So, what I'm doing wrong or how can I make it work? (I know I can make it as args and use $1/$2, or something like that, but I would like to avoid having to have the password open in the history) --- Edit/Solution: Building on the answers, a small change was enough to make it compatible with both bash and zsh:

#!/bin/bash
echo -n "User: "
read username
echo -n "Password: "
read -s password

export http_proxy="http://$username:$password@localhost:40080"
export https_proxy="http://$username:$password@localhost:40080"

Basically, just removed the e flag.