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Bypass CORS policy on S3-hosted site connected to RDS database


I have a public domain in S3 connected to an RDS database via MySQL, a lambda function that runs scripts on the MySQL database, and an API gateway that sends queries to the lambda function. Whenever I try to make an API call from my site, I get the error below.

Access to XMLHttpRequest at (lambda url) from origin (my site) has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

How can I get around this?

1 Answer

You can activate CORS on the API-Gateway.
This will add the required OPTIONS Method for the preflight Request to your API.

answered 6 months ago

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