export function constructHeaders(username, password) {
	const Authorization = constructAuthHeader(username, password);
	return {
			Authorization,
			Accept: "application/json"
	};
}
function constructAuthHeader(username, password) {
	const credentials = `${username}:${password}`;
	return `Basic ${toBase64(credentials)}`;
}
function toBase64(data) {
	const existsTextEncoder= typeof TextEncoder !== 'undefined';
	if (!existsTextEncoder)
		return btoa(data);
	const existsUint8ArrayToBase64= typeof Uint8Array.prototype.toBase64 === 'function';
	if (existsUint8ArrayToBase64)
		return new TextEncoder().encode(data).toBase64();

	const binString= Array.from(new TextEncoder().encode(data))
		.map(x=> String.fromCharCode(x)).join("");
	return btoa(binString);
}