ios webview测试

Error: /usr/local must be writable!
解决 sudo chown -R $(whoami) /usr/local

重新安装
 sudo ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

https://sebastianblade.com/debug-ios-safari-with-chrome-devtools/

http://www.jianshu.com/p/ea02cb83988c