配置当前路径映射到其他端口路径上，解决跨域问题

gulp.task('server', function() {
    gulp.src(dist)
        .pipe(webserver({
            host: 'localhost',
            port: 80,
            path: '/',
            livereload: false,
            proxies: [{
                source: '/h5',
                target: 'http://localhost:8080/h5'
            }]
        }))
});