Add a comment. Active Oldest Votes. The default is infinite. The purge will cause the file to be reloaded if it is called for again.
Improve this answer. Chenmunka Chenmunka 3, 10 10 gold badges 27 27 silver badges 37 37 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown.
The Overflow Blog. Does ES6 make JavaScript frameworks obsolete? Even if content has a valid expiration date, the browser will ask for validation that it has not changed from the server of origin.
This essentially defeats the purpose of setting content expiration dates. The use of how content is pulled from cache on repeat visits is impacted by the manner in which the request is issued.
While in the same browser session, all content for a site will be served from the local browser cache. If a user clicks through multiple pages of an application and the same graphics and elements are found on each page, the request will not be sent to the origin web server. Instead it will be served from the local cache.
If the user re-visits a page during that session, all of the content—including the HTML—will be retrieved from the local cache, as shown in the image below depending on the browser settings. As soon as the browser is closed, the session cache is cleared. For the next session, the only cache that will be used is the disk cache.
Users might also hit refresh on a page to check for new content, such as an updated sports score or news article. Hitting refresh results in an "If-None-Match" header being sent to the origin web server for all content that is currently on the disk cache, independent of the expiration date of the cached content.
This results in a response code for each reusable item that is currently in the browser's cache, as illustrated in the picture below. All objects will contain a response code of , indicating that all were served directly from the servers as in the illustration below.
If a new browser session is started and a user returns to a frequently visited site, the local browser cache will be used based on the browser settings. If a valid expiration date exists for cached content, it will be delivered directly from the cache and no request will be issued to the origin web server.
If content does not have a valid expiration date, the browser will insert an "If-modified-since" or "If-none-match" header into the request. If the content has not changed, then a will be returned from the server and the content will be retrieved from cache. On the other hand, if the content has changed, the server will respond with a and deliver the content to the user.
By using these settings, the user will get the most benefits from the Intelligent Browser Referencing features of WebAccelerator. If static content contains random query parameters to prevent caching an iRule can be used to remove these random parameters and enable caching.
The use of META tags will potentially negate the end user benefits of acceleration. META tags can be eliminated through the use of iRules or custom rewrite scripts.
To see the differences of the application with and without acceleration, a new browser session must be initiated; the other three ways of loading a page on repeat visits will show no differences with or without acceleration. In addition to your browser cache, it will also clear your browsing history, cookies, etc. To clear the browser cache for Internet Explorer , get started by clicking the Gear icon in the top right to access the Tools menu.
Then, find Safety and select Delete Browsing History… from the submenu:. Internet Explorer will open a popup. Make sure to only select the Temporary Internet files and website files box to avoid clearing important information.
Then, click the Delete button at the bottom:. To clear the browser cache for Microsoft Edge , click the Three Dots icon in the top right of your browser window. Make sure to only select the Cached data and files box to avoid clearing important information. Then, click the Clear button at the bottom. To clear the browser cache for Opera , click the Opera icon in the top left, find the More Tools option, and select Clear browsing data from the submenu:.
For most cases, you should set Obliterate the following items from: equal to at least the last 4 weeks. Then, make sure to only check the Cached images and files box and then click the Clear browsing data button:. All of that and much more, in one plan with no long-term contracts, assisted migrations, and a day-money-back-guarantee.
Your current host could be costing you time and money — get them back with Kinsta. Learn more. General WordPress questions. Last updated: May 28, Then, find the More Tools option and select Clear browsing data… from the submenu: Google Chrome clear browsing data menu.
Sign Up For the Newsletter. Clear browser cache in Google Chrome.
0コメント