Opera/Chrome客户端对目标端口的限制 - scz
Opera/Chrome客户端对目标端口有限制，参看How to fix ERR_UNSAFE_PORT error on Chrome when browsing to unsafe ports - [2010-09-13] https://superuser.com/questions/188006/how-to-fix-err-unsafe-port-error-on-chrome-when
Opera/Chrome客户端对目标端口有限制，参看How to fix ERR_UNSAFE_PORT error on Chrome when browsing to unsafe ports - [2010-09-13] https://superuser.com/questions/188006/how-to-fix-err-unsafe-port-error-on-chrome-when