__  __
 ___ / /_/ /  ___ _______ __ ____ _
/ -_) __/ _ \/ -_) __/ -_) // /  ' \
\__/\__/_//_/\__/_/  \__/\_,_/_/_/_/
                __      _ __        __  __
 _______  ___  / /_____(_) /  __ __/ /_/ /  ___  ___
/ __/ _ \/ _ \/ __/ __/ / _ \/ // / __/ _ \/ _ \/ _ \
\__/\___/_//_/\__/_/ /_/_.__/\_,_/\__/_//_/\___/_//_/

Summary

When creating new network settings, Block Explorer URL is optional. If I write a letter and then erase all letter on this form(Block Explorer URL), save button must be activated because there is no value. But When I do this, the button is disabled. So I solved this problem.

Details

Contribution URL: https://github.com/MetaMask/metamask-extension/pull/7137