Even after password encrypted with hash Salt on client side at javascript still it passes to browses memory in plain text password code in asp.net

Question

I have encrypted the password at client side used javascript to do password encrypted with hash salt aes encryption.

But when we passed the encrypted password to server side code asp.net with vb.

it get stored in browsers memory as in plain text.

How to avoid to store password in browsers memory browser dump file as in plain text.

We have resolved application security issue

password can steal from browser memory