📦 Kong / insomnia-mockbin

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30module.exports = (req, res, next) => {
	// default values
	const cors = {
		origin: "*",
		headers: Object.keys(req.headers).join(),
		methods: req.method,
	};

	if (req.headers.origin) {
		cors.origin = req.headers.origin;
	}

	if (req.headers["access-control-request-headers"]) {
		cors.headers = req.headers["access-control-request-headers"];
	}

	if (req.headers["access-control-request-method"]) {
		cors.methods = req.headers["access-control-request-method"];
	}

	res.set({
		"Access-Control-Allow-Origin": cors.origin,
		"Access-Control-Allow-Methods": cors.methods,
		"Access-Control-Allow-Headers": cors.headers,
		"Access-Control-Allow-Credentials": "true",
	});

	next();
};