Re: How can I force clients to refresh JavaScript files?
Try CF Static (http://cfstatic.riaforge.org/), it appends a unique string to the end of the file requests, which forces browsers to load the newer version. You can have it compress all your CSS and JS files or simply use it deliver your files. On Fri, Sep 12, 2014 at 11:05 AM, wrote: I wonder why browsers caching Javascript and CSS files at least do not check if the date of the file on the server is still the same as the one in their cache. Since I implemented a Javascript errors log, I catch many errors showing that the old file in the cache was used days after the error was corrected, even with Google Bot! (yeah, Google Bot reads and executes scripts). This page : http://stackoverflow.com/questions/32414/how-can-i-force-clients-to-refresh-javascript-files expose the problem and gives many solutions. I wonder if one could develop an even better solution using ColdFusion? Any ideas? ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:359294 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
RE: How can I force clients to refresh JavaScript files?
The easiest way is to simply expire the page using cfheader. Take a look at http://www.bennadel.com/blog/1619-caching-coldfusion-pages-with-expires-header-value.htm. David Phelan Web Developer IT Security Web Technologies Emerging Health Montefiore Information Technology 3 Odell Plaza, Yonkers, NY 10701 914-457-6465 Office dphe...@emerginghealthit.com www.emerginghealthit.com www.montefiore.org From: =?ISO-8859-1?Q?Claude_Schn=E9egans schneegans@interneti=71?= =?ISO-8859-1?Q?ue.com=3E?= Sent: Friday, September 12, 2014 11:05 AM To: cf-talk Subject: How can I force clients to refresh JavaScript files? I wonder why browsers caching Javascript and CSS files at least do not check if the date of the file on the server is still the same as the one in their cache. Since I implemented a Javascript errors log, I catch many errors showing that the old file in the cache was used days after the error was corrected, even with Google Bot! (yeah, Google Bot reads and executes scripts). This page : http://stackoverflow.com/questions/32414/how-can-i-force-clients-to-refresh-javascript-files expose the problem and gives many solutions. I wonder if one could develop an even better solution using ColdFusion? Any ideas? ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:359295 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: How can I force clients to refresh JavaScript files?
Try CF Static (http://cfstatic.riaforge.org/), it appends a unique string to the end of the file requests, Ok, good technique. But instead of downloading 262 files, I developped this simple CF_script custom tag: CFSETTING ENABLECFOUTPUTONLY=Yes CFSET scriptFile = expandPath(attributes.src) CFIF fileExists(scriptFile) !--- get a timestamp from the file --- CFSET fileInfo = getFileInfo(scriptFile) CFSET timeStamp = dateFormat (fileInfo.lastModified, yymmdd) timeFormat(fileInfo.lastModified, HHmmss) CFELSE CFOUTPUTFile #attributes.src# not found/CFOUTPUTCFABORT /CFIF CFOUTPUTSCRIPT type=text/javascript src=#attributes.src#?#timestamp#/SCRIPT /CFOUTPUT CFSETTING ENABLECFOUTPUTONLY=no Then replace all like script src=/commun/CSI_menu.js type=text/javascript/script by CF_script src=/commun/CSI_menu.js It does the job. I will probably develop the same for css files ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:359296 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: How can I force clients to refresh JavaScript files?
The easiest way is to simply expire the page using cfheader. The problem with this technique is that you will force a reload even if the file was not changed. ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:359297 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
