setRequestHeader ('Access-Control-Allow-Headers', '*');. Would fix it,but it didn't. Does anyone have any information on this error and/or how I ... ... <看更多>

setRequestHeader ("Access-Control-Allow-Headers", "Cache-Control, Pragma, Origin, Authorization, Content-Type, X-Requested-With"); ... <看更多>

I would suggest you to add your site into below: CSP Trusted Sites; CORS Setting. In addition to the above, did you try using ConnectedApp ... ... <看更多>

setRequestHeader ("Access-Control-Allow-Credentials", "true"); xhr.setRequestHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, ... ... <看更多>

In this video tutorial I'll be explaining what the "Access-Control-Allow-Origin" HTTP Response Header is ... ... <看更多>