One way to do this is to modify the internet browser settings to always check for page updates. To change this setting in IE, go to the gear menu in the upper right corner of IE. Select "internet options." In the "General" tab, under browsing history, click "settings." In the window that comes up, select the radio button for "Every time I visit the webpage.". Click OK on all of the windows. .Sometimes a Control-R or a Control-F5 will also work to clear the cache, but I've found that making the above setting is more effective. Similar setting exist for Chrome and Firefox, also.