http request header

    In the project, every time a request is made, the browser will query the request headers and response headers such as the response header and the request header. The specific meaning of each parameter is briefly summarized as follows:

     1. Request headers

         1. Accept: Acceptable response content type (returned data type)

         2. Accept-Encoding: gizp, deflate (two compression methods on the server side, generally using gzip, browsers are not very friendly to deflate, generally disabled)

        Reference: http://www.webkaka.com/tutorial/server/2015/021013/

         3、 Accept-Language: zh-CN, zh; q=0.9

         zh-CN means Chinese, zh is used alone to mean the whole Chinese, which can be mixed content such as dialect, classical Chinese, simplified and traditional Chinese, etc.