ajax-cache-parser
v1.2.0
Published
A small function to get when an ajax request expires
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ajax-cache-parser
A small function to get when an ajax request expires
Given an XMLHttpRequest object that has received response headers back from a server, getCacheExpiry
will return
a javascript Date
object that represents when the response will expire based on the Expires
and Cache-Control
response headers. If caching headers are not present or are unparseable, undefined
will be returned. If caching
headers indicate that the resource should not be cached, null
will be returned.
Example
function callback(){
var expiration = parser.getCacheExpiry(this);
// do something with expiration
}
var oReq = new XMLHttpRequest();
oReq.onload = callback;
oReq.open("get", yourUrl, true);
oReq.send();
Information about caching headers comes from: https://www.mnot.net/cache_docs/