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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(86.4, 51%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDM%3C/text%3E%3C/svg%3E)
im trying to use business central api with js in my portal but when i meke the request to get the token, i show this problem "lcxtesting.powerappsportals.com/:1 Access to XMLHttpRequest at 'https://login.microsoftonline.com/4423c900-c81b-4d29-a032-8433310bf02a/oauth2/v2.0/token' from origin 'https://lcxtesting.powerappsportals.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource."
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(54.400000000000006, 38%, 15%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EQ%3C/text%3E%3C/svg%3E)
Hello @Daniel Muñoz Ramirez Did you check the CORS settings in the web application or portal?
Are you able to GET the access token via any other client app? Such as Postman?
I got the token wiht Postman, but wiht js i cant get it. i have the problem with Cors Policy in every navigator