Cross-domain access-you need to set HTTP response headers

Premise: Configuration of the server site (the requested website)

1. The HTTP response header needs to be set in the features view of the IIS Server site:

2. Double click on "HTTP response header" To enter the Setup interface

3. Click the Add button to the right of the popup window

4. Fill in the information you need to set

Name: Access-control-allow-origin Value: * (or website domain name)

Name: Access-control-allow-methods value: GET, POST, PUT, DELETE, OPTIONS

Name: Access-control-allow-headers Value: Content-type

You can now use Jquery:ajax to access information about the services on this site!

In addition, it can also be configured in the Webconfig on the server side:

<system.webServer>
<customHeaders>
<add name= "Access-control-allow-origin" value= "*"/>
<add name= "Access-control-allow-methods" value= "Get,post,put,delete,options"/>
<add name= "Access-control-allow-headers" value= "Content-type"/>
</customHeaders>
</system.webServer>

Cross-domain access-you need to set HTTP response headers