Home/ Questions/Q 7560965
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-30T13:02:40+00:00

I’m looking to make one XmlHttpRequest (every 30 minutes — retrieving weather forecast) and

  • 0

I’m looking to make one XmlHttpRequest (every 30 minutes — retrieving weather forecast) and use the XML response over multiple html documents. I’ve looked near and far and can only get the parsed XML to show on one document.

Is there a way to reference different documents from one javascript function?

No framework, just straight javascript/ajax. 

forecastXMLreq = new XMLHttpRequest();
forecastXMLreq.open("GET",forecastURL,false);
forecastXMLreq.send(); 
forecastXML = forecastXMLreq.responseXML;
var day1 = forecastXML.getElementsByTagName("weekday_short")[1].childNodes[0].nodeValue;
document.getElementById("day1").innerHTML = day1.toUpperCase();

Multiple html files, one XHR call is what I’m looking for

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    The easiest way would be to leverage regular http caching. On the next pages, you still need to request the file in your code, but the browser can potentially skip the request and just automatically and transparently fetch from the local disk cache instead. You aren’t guaranteed it will be cached for the full 30 minutes, as the browser has a limited amount of cache space and it decides what to purge, and when.

    Just configure the server to send the following http header for that xml response

    Cache-Control: max-age=1800

    more info on http caching
    http://www.mnot.net/cache_docs/

    An alternative is to make use of the limited support that browser offer for html5 local storage. No web server config is needed, although browser support is limited, and you don’t need to re request the file in the code, but then again you will have different code for retrieving it from local storage.

    • 0