Browser Cache
Modern web browsers store ("cache") frequently accessed files locally for efficiency reasons. Sometimes browsers do not detect that those files have changed on the server, and the local cache needs to be manually emptied so that the latest version of the file is accessed. This frequently occurs with javascript and css files, which contain the code and formatting that underlie many web pages.
WebMO attempts to inform the browser when its files have changed, but this is not recognized in every situation. Thus it can be necessary that WebMO users must clear their web browser cache, particularly after updating WebMO which likely includes newer version of these types of files.
The diagnostic for determining whether the browser's cache must be cleared is to load WebMO into an incognito window. If WebMO works in an incognito window but not in a regular window, then the browser's cache must be cleared.
Instructions for clearing the cache of popular browsers follow. In the options given below, the first option deletes the cache and cookies for the WebMO server's website, and the last option deletes the cache and cookies for ALL websites.
Note that a cache is stored on each client computer for each browser, not on the server. So this procedure may need to be done on each computer for each browser that has is experiencing javascript difficulties.
Windows
Edge:
To delete cookies and cache for WebMO website:
- Navigate to misbehaving WebMO page > ... > More tools > Developer tools > Application tab > Application:Storage > Clear site data
To delete cookies and cache for ALL websites:
- ... > Settings > Privacy, search, and services > Delete browsing data > Choose what to clear > Cookies and other site data, Cached images and files > Delete data
Chrome:
To delete cache only for WebMO website:
- Navigate to misbehaving WebMO page > ... > More tools > Developer tools > right-click (or click-and-hold) on the reload icon to the left of the URL bar > Empty Cache and Hard Reload
To delete cookies and cache for WebMO website:
- Navigate to misbehaving WebMO page > ... > More tools > Developer tools > Application tab > Application:Storage > Clear site data
To delete cookies and cache for ALL websites:
- ... > Settings > Privacy and security > Delete browsing data > Cookies and other site data, Cached images and files > Delete data
Firefox:
To delete cookies and cache for WebMO website:
- ... > Settings > Privacy & Security > Cookies and Site Data > Manage Data... > search for and select WebMO site > Remove Selected > Save Changes
To delete cookies and cache for ALL websites:
- ... > Settings > Privacy & Security > Cookies and Site Data > Clear Data... > Cookies and Site Data, Cached Web Content > Clear
Mac OS
Safari:
To delete cookies and cache for WebMO website:
- Safari > Settings... > Privacy > Manage Website Data... > search for and select WebMO site > Remove > Done
To delete cookies and cache for ALL websites:
- Safari > Settings... > Advanced > Show features for web developers
- Develop > Empty Caches
Chrome:
To delete cache only for WebMO website:
- Navigate to misbehaving WebMO page > View > Developer > Developer Tools > right-click (or click-and-hold) on the reload icon to the left of the URL bar > Empty Cache and Hard Reload
To delete cookies and cache for WebMO website:
- Navigate to misbehaving WebMO page > View > Developer > Developer Tools > Application tab > Application:Storage > Clear site data
To delete cookies and cache for ALL websites:
- Chrome > Settings... > Privacy & Security > Delete browsing data > Cookies and other site data, Cached images and files > Delete Data
Firefox:
To delete cookies and cache for WebMO website:
- Firefox > Preferences > Privacy & Security > Manage Data... > search for and select WebMO site > Remove Selected > Save Changes
To delete cookies and cache for ALL websites:
- Firefox > Preferences > Privacy & Security > Cookies and Site Data > Clear Data... > Cookies and site data, Temporary cached files and pages > Clear