this is the code of the front-end request
javacors 
is there something wrong with the setting mode? I don"t know much about the background code at the front end, and I don"t know how to solve cross-domain problems in the background
.
this is the code of the front-end request
javacors
is there something wrong with the setting mode? I don"t know much about the background code at the front end, and I don"t know how to solve cross-domain problems in the background
.visit the target address directly, and use the package grab tool or browser developer tool to take a look at the HTTP header to see if there are any domain names that allow you to deploy at the front end.
response header Access-Control-Allow-Credentials:true
forehead. Ask me, have you solved this problem? I found the same problem.
when developing, you can turn off the cross-domain restrictions on chrome browsers.
http://www.cnblogs.com/laden6.
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