Looks like it may be partly Gravatar's fault. In the header for my image, they are sending Last-Modified: Fri, 20 Jun 2008 12:25:23 GMT. I think this is either the date I uploaded my old Gravatar, or the date I signed up for Gravatar. The browser must be seeing that and thinking 'oh, this new file has the same last-modification date, so I'll just use the cached one still.' It's a bug if Chrome is doing that on a refresh ignoring cache, but it's a bug for Gravatar to send the wrong last-modification as well. I've contacted both parties.:) – Dec 31 '09 at 16:16.
Open the Go menu with Option (Alt) key pressed - Library - locate Safari folder and delete it. Restart your Mac. Here’s what you need to do to reset Google Chrome: Launch Chrome and open its Settings menu by clicking on the button in the top right-hand corner of the window. The difference is not just for Chrome but for most of the web browsers. F5 refreshes the web page and often reloads the same page from the cached contents of the web browser. However, reloading from cache every time is not guaranteed and it also depends upon the cache expiry.
On a Mac, it's Shift+Command+R, or holding down Shift while clicking the reload button (as opposed to Command+R or a normal click for a regular refresh). Some more details: For Shift+Command+R, cache is simply ignored and resources are requested like no cache existed. For Command+R, Chrome will issue If-Modified-Since or Etag requests to the web server, even for things that are actually cached. For most, if not all, content the server should then respond with 304 Not Modified. This is true for most, if not all, modern browsers. The only way to force relying on the cache (without the browser even asking for possible changes) seems to be clicking a link on the web page, or by following a bookmarked link, or by going into the URL location bar and hitting Return there (Command+L, Return). However: a longstanding known issue in Chrome, (and the more recent ), or maybe actually a feature in WebKit, makes Chrome not clear ALL related caches when using the above methods.
A Chromium developer: The network tab of the developer tools show a waterfall of all resources as they are loaded. There are two vertical lines at the right hand side. One of them is labeled 'Load event fired' on hover.
Anything loading after that point is not officially part of the page (a page can keep issuing requests for hours). so it will NOT be 'refreshed' with any combination of f5. This is by design. Caching of any resource, before and after the 'Load event fired' line is determined by the HTTP headers of the response, not by the time the request was issued. Also: Chrome DevTools' Disable Cache invalidates the disk cache (great for developing!), but. Only while devtools is visible.
Browser cache are useful for web browsing, but a real pain point for developers. Modern day browsers nowadays cache every front end resource like javascript or CSS style sheets. They primarily do this to increase the website performance.
But this can be really irritating while one is in development mode and constantly modifying the javascript or css style sheets. The only way to see the changes is by doing a hard refresh or clear the cache of the browser. A hard refresh is a way of clearing the browser’s cache for a specific page, to force it to load the most recent version of a page. Sometimes, when changes are made to the website, they don’t register immediately due to caching. A hard refresh will usually fix this, though occasionally completely clearing the cache is necessary. How to do hard refresh on various browsers?
Chrome: Quick hard refresh can be done by using the following short cut keys Windows/Linux:. Hold down Ctrl and click the Reload button. Or, Hold down Ctrl and press F5. just open the Chrome Dev Tools by pressing F12. Once the chrome dev tools are open, just right click on the refresh button and a menu will drop down.
This menu gives you the option of doing a hard refresh, or even clearing the cache and do a hard refresh automatically. Mac:. Hold ⇧ Shift and click the Reload button. Or, hold down ⌘ Cmd and ⇧ Shift key and then press R. Mozilla Firefox and Related Browsers: Windows/Linux:.
Hold the Ctrl key and press the F5 key. Or, hold down Ctrl and ⇧ Shift and then press R. Mac:. Hold down the ⇧ Shift and click the Reload button.
Or, hold down ⌘ Cmd and ⇧ Shift and then press R. Internet Explorer:. Hold the Ctrl key and press the F5 key.
Or, hold the Ctrl key and click the Refresh button. FileCloud - The fastest growing enterprise file sharing and sync solution!