[OpenLayers-Users] Caching of layer source

[Gregor at HostGIS]

Maarten Deen wrote:
> How long does the source of an rss layer get cached?

It's entirely up to your browser. If it's being cached, try using HTTP 
headers or request params to prevent this.

If you're using PHP, you can use header() to effectively disable caching.

If you add a random number to the URL of the RSS, it will also 
effectively disable caching, e.g.:
   url += '&random=' + Math.random();

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