no more cache – force the reload [ 743 views ]
Goal: to avoid the cache provided old file versions
If I load an external javascript or css file from js code like this:
// load a css file
var s = document.createElement('link');
s.setAttribute('rel', 'stylesheet');
s.setAttribute('type', 'text/css');
s.setAttribute('href', 'main.css');
document.getElementsByTagName('head')[0].appendChild(s);
// load a js file
var s = document.createElement('script');
s.type = 'text/javascript';
s.src = 'main.js';
document.getElementsByTagName('head')[0].appendChild(s);
First time is ok, but second time may be I will receive the file from the cache.
To avoid the cache just put some fake parameter to the end of the file request.
...
s.setAttribute('href', 'main.css?_' + new Date().getTime());
...
...
script.src = 'main.js?_' + new Date().getTime();
...
In this case the client will ask the server every time and never the cache.
Wednesday, June 11th, 2014 at 21:13.
Filed under javascript
, web trick.
