Function hasCorsHeaders

lib/api/api.js:103–114

(callbackArgs)

// corsHeaders), (err, dataGetInfo, resMetaHeaders, range), ...) so we
// scan the args instead of relying on a fixed position.
function hasCorsHeaders(callbackArgs) {
    for (const arg of callbackArgs) {
        if (!arg || typeof arg !== 'object' || Array.isArray(arg)
            || Buffer.isBuffer(arg)) {
            continue;
        }
        if ('access-control-allow-origin' in arg) {
            return true;
        }
    }
    return false;
}

// Wrap the API callback so that, on error, we look up the bucket's CORS
// configuration and set the matching Access-Control-* headers directly on