javascript - Why can't I access local services after chrome is upgraded to version 55?

Question

The company will activate the client printing function. After installing the client, it will start a 127.0.0.1:8801 service, and then click the print button on the website to make an ajax cross-domain request http://127.0.0.1:8801/ , if the client is installed, this interface will return a status code and then call up the client. Otherwise, it will be considered that the user has not installed it and needs to be prompted to install the client.

$.ajax({
    url:'http://127.0.0.1:8801/?url=xxxxxx&print=1',
    dataType:'jsonp',
    timeout:10000,
    error:function(){
        alert('尚未安装套打专用插件')
    }
})

Chrome54 and previous versions are good, but after the upgrade, the client can be called up, but the interface never receives a response, resulting in the error method

I don’t know if it is because of a security vulnerability that Chrome has blocked this, or for some other reason. The number of visits to our website Chrome is still very large. How to solve this problem?

Answer 1

Enter in the address bar:

chrome://flags/

View to enable or disable certain features.