lua脚本动态插入script标签 在nginx层面

body_filter_by_lua_block{

local pin = ngx.var.cookie_jrapp_jsfGateway_testPin

local domain = ngx.var.host

local scheme = ngx.var.scheme

local title = "白条"

local match = ngx.arg1:match("<title>(\^\<+)</title>")

if match then

title = match

end

if not pin then

pin = "未知pin"

end

local script = string.format('<script crossorigin=\"anonymous\" src=\"%s://%s/page-spy/index.min.js\"></script><script>window.$pageSpy=new PageSpy({ project: \"%s\", title: \"%s\" })</script></head>', scheme,domain,title, pin)

ngx.arg1 = ngx.arg1:gsub("</head>", script)

}