'AWS Lambda Function URL error when submitting JSON request body: unreachable end point

We enable the new Function URL feature for an AWS Lambda function.

CORS is enabled. GET/POST/OPTIONS methods are allowed. The function is public -- no authorization required.

Hitting the URL from the browser invokes the function.

Hitting the URL from Postman with GET/POST invokes the function -- if you provide an empty request body.

However, defining a JSON request body causes the same URL to be unreachable.

Why?

aws-lambda

Sources

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