nl_tokens: The main window object s message event callback function .
pl_tokens: function onmessage ( e ) { debug ( 'onmessage' ) ; // safeguard... if ( e . origin !== proxyOrigin ) { debug ( 'ignoring message... %o !== %o' , e . origin , proxyOrigin ) ; return ; } let { data } = e ; if ( ! data ) { return debug ( 'no `data`, bailing' ) ; } // Once the iframe is loaded, we can start using it. if ( data === 'ready' ) { onload ( ) ; return ; } if ( postStrings && 'string' === typeof data ) { data = JSON . parse ( data ) ; } // check if we're receiving a "progress" event if ( data . upload || data . download ) { return onprogress ( data ) ; } if ( ! data . length ) { return debug ( '`e.data` doesn\'t appear to be an Array, bailing...' ) ; } // first get the `xhr` instance that we're interested in const id = data [ <mask> . length - 1 ] ; if ( ! ( id in requests ) ) { return debug ( 'bailing, no matching request with callback: %o' , id ) ; } const xhr = requests [ id ] ; // Build `error` and `body` object from the `data` object const { params } = xhr ; let body , statusCode , headers ; // apiNamespace (WP-API) const { apiNamespace } = params ; body = data [ 0 ] ; statusCode = data [ 1 ] ; headers = data [ 2 ] ; if ( statusCode === 207 ) { // 207 is a signal from rest-proxy. It means, "this isn't the final // response to the query." The proxy supports WebSocket connections // by invoking the original success callback for each message received. } else { // this is the final response to this query delete requests [ id ] ; } if ( ! params . metaAPI ) { debug ( 'got %o status code for URL: %o' , statusCode , params . path ) ; } else { statusCode = body === 'metaAPIupdated' ? 200 : 500 ; } // add statusCode into headers object if ( typeof headers === 'object' ) { headers . status = statusCode ; } if ( statusCode && 2 === Math . floor ( statusCode / 100 ) ) { // 2xx status code, success resolve ( xhr , body , headers ) ; } else { // any other status code is a failure const wpe = WPError ( params , statusCode , body ) ; reject ( xhr , wpe , headers ) ; } }