JS Request cross-domain problem--access-control-allow-origin

Appears during commissioning of the front desk

XMLHttpRequest cannot load http://www.xx.com/Action/Index.php?Action=11. No ' Access-control-allow-origin ' header is present on the requested resource. Origin ' http://blog.xx.com ' is therefore not allowed access.

This time only needs to be added in the HTTP response header

Access-control-allow-origin:http://blog.xx.com

Attention:

Generic domain names, such as *.xx.com, are not supported

Can only be configured as *, or specify a URI

When configuring the specified domain name, you need to add http://https://prefix;

Or is

Access-control-allow-origin:http://www.xx.com,http://blog.xx.com

Otherwise it's

Access-control-allow-origin: *

Nginx Add Method:

Add_header Access-control-allow-origin *;

Haproxy Add Method:

Rspadd access-control-allow-origin:\ *

This article is from "Maple Night" blog, please be sure to keep this source http://fengwan.blog.51cto.com/508652/1892964

JS Request cross-domain problem--access-control-allow-origin