Clear Safari's browser cache in OS X
How to clean up Safari's cache on your Mac
Here's how you can clear Safari's browser cache in OS X on your Mac.
1. Open Safari.
2. Click on Safari in the menubar.
3. Click on Preferences
4. Click on Advanced.
5. Click the "Show Develop Menu in Menu Bar" option.
6. Click on the Develop link at the top in the menu bar.
7. Scroll down and click on Empty Caches.