CreateTLSHTTPClient provides a basic http client prepared with a trusted CA cert.

EnableCORS Allows Tenscan and WalletExtension APIs to serve other web apps via CORS.

ExecuteHTTPReq executes an HTTP request: * returns an error if request fails or if the response code was outside the range 200-299 * returns response body as bytes if there was a response body.

PostDataJSON sends a JSON payload to the given URL and returns the status, response body, and any error encountered.

CORS-related constants.