Re: [WSG] how to force a cache bypass?
(See below) On 8/2/12 9:50 PM, James Ducker wrote: Second that. If you can version the filenames that's definitely the most sure-fire way to make sure users don't cache old copies. James On 3 August 2012 14:39, Emmanuel Negri nna...@gmail.com mailto:nna...@gmail.com wrote: Sometimes a random query string does not work. Changing the filename itself works 100% of the time. Eg. style-scm-revision-number.css Manu On 03/08/2012, at 1:25 PM, James Ducker james.duc...@gmail.com mailto:james.duc...@gmail.com wrote: Append some junk querystring to the end of the URL, like example.com/index.html?20120803132400 http://example.com/index.html?20120803132400. Every time it changes, stuff will be refreshed. Wouldn't really recommend doing it for regular pages because it makes the URLs look messy, but if you're trying to refresh scripts or images, go nuts. James On 21 July 2012 03:22, Rob Crowther robe...@boogdesign.com mailto:robe...@boogdesign.com wrote: On 20/07/2012 17:47, coder wrote: How can I make a web page appear as the latest version in all browsers, i.e., perform a cache bypass? And I don't mean for me - I mean for all visitors to the page? Is it possible? ?? Once it's cached in the browser there's not much you can do about it, the browser will store the cache settings at the time when it cached the page and if those settings say don't check again for a month then, generally, it won't. If you want the page to never be cached then you need to set the expiry header. With Apache servers this is quite straightforward and can usually be done in the directory's .htaccess file: ExpiresByType text/html access plus 0 seconds This is example was take from HTML5 BoilerPlate: https://github.com/h5bp/html5-__boilerplate/blob/__83f4f281866be1cf7f391738c53c44__8a5ac658e9/.htaccess#L233 https://github.com/h5bp/html5-boilerplate/blob/83f4f281866be1cf7f391738c53c448a5ac658e9/.htaccess#L233 Rob You may be interested in this automated way of doing it: http://derek.io/blog/2009/auto-versioning-javascript-and-css-files/ -- Cordially, David *** List Guidelines: http://webstandardsgroup.org/mail/guidelines.cfm Unsubscribe: http://webstandardsgroup.org/join/unsubscribe.cfm Help: memberh...@webstandardsgroup.org ***
Re: [WSG] how to force a cache bypass?
Append some junk querystring to the end of the URL, like example.com/index.html?20120803132400. Every time it changes, stuff will be refreshed. Wouldn't really recommend doing it for regular pages because it makes the URLs look messy, but if you're trying to refresh scripts or images, go nuts. James On 21 July 2012 03:22, Rob Crowther robe...@boogdesign.com wrote: On 20/07/2012 17:47, coder wrote: How can I make a web page appear as the latest version in all browsers, i.e., perform a cache bypass? And I don't mean for me - I mean for all visitors to the page? Is it possible? ?? Once it's cached in the browser there's not much you can do about it, the browser will store the cache settings at the time when it cached the page and if those settings say don't check again for a month then, generally, it won't. If you want the page to never be cached then you need to set the expiry header. With Apache servers this is quite straightforward and can usually be done in the directory's .htaccess file: ExpiresByType text/html access plus 0 seconds This is example was take from HTML5 BoilerPlate: https://github.com/h5bp/html5-**boilerplate/blob/** 83f4f281866be1cf7f391738c53c44**8a5ac658e9/.htaccess#L233https://github.com/h5bp/html5-boilerplate/blob/83f4f281866be1cf7f391738c53c448a5ac658e9/.htaccess#L233 Rob *** List Guidelines: http://webstandardsgroup.org/**mail/guidelines.cfmhttp://webstandardsgroup.org/mail/guidelines.cfm Unsubscribe: http://webstandardsgroup.org/**join/unsubscribe.cfmhttp://webstandardsgroup.org/join/unsubscribe.cfm Help: memberhelp@webstandardsgroup.**orgmemberh...@webstandardsgroup.org *** -- *James Ducker* james.duc...@gmail.com +61 404 838 470 *** List Guidelines: http://webstandardsgroup.org/mail/guidelines.cfm Unsubscribe: http://webstandardsgroup.org/join/unsubscribe.cfm Help: memberh...@webstandardsgroup.org ***
Re: [WSG] how to force a cache bypass?
Sometimes a random query string does not work. Changing the filename itself works 100% of the time. Eg. style-scm-revision-number.css Manu On 03/08/2012, at 1:25 PM, James Ducker james.duc...@gmail.com wrote: Append some junk querystring to the end of the URL, like example.com/index.html?20120803132400. Every time it changes, stuff will be refreshed. Wouldn't really recommend doing it for regular pages because it makes the URLs look messy, but if you're trying to refresh scripts or images, go nuts. James On 21 July 2012 03:22, Rob Crowther robe...@boogdesign.com wrote: On 20/07/2012 17:47, coder wrote: How can I make a web page appear as the latest version in all browsers, i.e., perform a cache bypass? And I don't mean for me - I mean for all visitors to the page? Is it possible? ?? Once it's cached in the browser there's not much you can do about it, the browser will store the cache settings at the time when it cached the page and if those settings say don't check again for a month then, generally, it won't. If you want the page to never be cached then you need to set the expiry header. With Apache servers this is quite straightforward and can usually be done in the directory's .htaccess file: ExpiresByType text/html access plus 0 seconds This is example was take from HTML5 BoilerPlate: https://github.com/h5bp/html5-boilerplate/blob/83f4f281866be1cf7f391738c53c448a5ac658e9/.htaccess#L233 Rob *** List Guidelines: http://webstandardsgroup.org/mail/guidelines.cfm Unsubscribe: http://webstandardsgroup.org/join/unsubscribe.cfm Help: memberh...@webstandardsgroup.org *** -- James Ducker james.duc...@gmail.com +61 404 838 470 *** List Guidelines: http://webstandardsgroup.org/mail/guidelines.cfm Unsubscribe: http://webstandardsgroup.org/join/unsubscribe.cfm Help: memberh...@webstandardsgroup.org *** *** List Guidelines: http://webstandardsgroup.org/mail/guidelines.cfm Unsubscribe: http://webstandardsgroup.org/join/unsubscribe.cfm Help: memberh...@webstandardsgroup.org ***
Re: [WSG] how to force a cache bypass?
Second that. If you can version the filenames that's definitely the most sure-fire way to make sure users don't cache old copies. James On 3 August 2012 14:39, Emmanuel Negri nna...@gmail.com wrote: Sometimes a random query string does not work. Changing the filename itself works 100% of the time. Eg. style-scm-revision-number.css Manu On 03/08/2012, at 1:25 PM, James Ducker james.duc...@gmail.com wrote: Append some junk querystring to the end of the URL, like example.com/index.html?20120803132400. Every time it changes, stuff will be refreshed. Wouldn't really recommend doing it for regular pages because it makes the URLs look messy, but if you're trying to refresh scripts or images, go nuts. James On 21 July 2012 03:22, Rob Crowther robe...@boogdesign.com wrote: On 20/07/2012 17:47, coder wrote: How can I make a web page appear as the latest version in all browsers, i.e., perform a cache bypass? And I don't mean for me - I mean for all visitors to the page? Is it possible? ?? Once it's cached in the browser there's not much you can do about it, the browser will store the cache settings at the time when it cached the page and if those settings say don't check again for a month then, generally, it won't. If you want the page to never be cached then you need to set the expiry header. With Apache servers this is quite straightforward and can usually be done in the directory's .htaccess file: ExpiresByType text/html access plus 0 seconds This is example was take from HTML5 BoilerPlate: https://github.com/h5bp/html5-**boilerplate/blob/** 83f4f281866be1cf7f391738c53c44**8a5ac658e9/.htaccess#L233https://github.com/h5bp/html5-boilerplate/blob/83f4f281866be1cf7f391738c53c448a5ac658e9/.htaccess#L233 Rob *** List Guidelines: http://webstandardsgroup.org/**mail/guidelines.cfmhttp://webstandardsgroup.org/mail/guidelines.cfm Unsubscribe: http://webstandardsgroup.org/**join/unsubscribe.cfmhttp://webstandardsgroup.org/join/unsubscribe.cfm Help: memberhelp@webstandardsgroup.**orgmemberh...@webstandardsgroup.org *** -- *James Ducker* james.duc...@gmail.com +61 404 838 470 *** List Guidelines: http://webstandardsgroup.org/mail/guidelines.cfm Unsubscribe: http://webstandardsgroup.org/join/unsubscribe.cfm Help: memberh...@webstandardsgroup.org *** *** List Guidelines: http://webstandardsgroup.org/mail/guidelines.cfm Unsubscribe: http://webstandardsgroup.org/join/unsubscribe.cfm Help: memberh...@webstandardsgroup.org *** -- *James Ducker* james.duc...@gmail.com +61 404 838 470 *** List Guidelines: http://webstandardsgroup.org/mail/guidelines.cfm Unsubscribe: http://webstandardsgroup.org/join/unsubscribe.cfm Help: memberh...@webstandardsgroup.org ***
[WSG] how to force a cache bypass?
OK, this isn't about standards, but it's more interesting than knowing that folk are not in the office . . . How can I make a web page appear as the latest version in all browsers, i.e., perform a cache bypass? And I don't mean for me - I mean for all visitors to the page? Is it possible? ?? Bob *** List Guidelines: http://webstandardsgroup.org/mail/guidelines.cfm Unsubscribe: http://webstandardsgroup.org/join/unsubscribe.cfm Help: memberh...@webstandardsgroup.org ***
Re: [WSG] how to force a cache bypass?
Are! you again Bob, we will have people complaining about off topic again lol You can do this Bob Place the following meta tag within the head of your HTML document. When used to refresh the current page, the syntax looks like this: It should work in all browsers but dont hold me to that and do a check mate. This tells the server to call up a new version of the page each time its requested. (or refreshed automatically in 600 seconds if they stay on the page) meta http-equiv=refresh content=600 Dan - Original Message - From: coder To: wsg@webstandardsgroup.org Sent: Friday, July 20, 2012 5:47 PM Subject: [WSG] how to force a cache bypass? OK, this isn't about standards, but it's more interesting than knowing that folk are not in the office . . . How can I make a web page appear as the latest version in all browsers, i.e., perform a cache bypass? And I don't mean for me - I mean for all visitors to the page? Is it possible? ?? Bob *** List Guidelines: http://webstandardsgroup.org/mail/guidelines.cfm Unsubscribe: http://webstandardsgroup.org/join/unsubscribe.cfm Help: memberh...@webstandardsgroup.org *** *** List Guidelines: http://webstandardsgroup.org/mail/guidelines.cfm Unsubscribe: http://webstandardsgroup.org/join/unsubscribe.cfm Help: memberh...@webstandardsgroup.org ***
Re: [WSG] how to force a cache bypass?
On 20/07/2012 17:47, coder wrote: How can I make a web page appear as the latest version in all browsers, i.e., perform a cache bypass? And I don't mean for me - I mean for all visitors to the page? Is it possible? ?? Once it's cached in the browser there's not much you can do about it, the browser will store the cache settings at the time when it cached the page and if those settings say don't check again for a month then, generally, it won't. If you want the page to never be cached then you need to set the expiry header. With Apache servers this is quite straightforward and can usually be done in the directory's .htaccess file: ExpiresByType text/html access plus 0 seconds This is example was take from HTML5 BoilerPlate: https://github.com/h5bp/html5-boilerplate/blob/83f4f281866be1cf7f391738c53c448a5ac658e9/.htaccess#L233 Rob *** List Guidelines: http://webstandardsgroup.org/mail/guidelines.cfm Unsubscribe: http://webstandardsgroup.org/join/unsubscribe.cfm Help: memberh...@webstandardsgroup.org ***
