Google Chrome

• Click the three dots in the top right corner.
• Select “Delete Browsing Data..."
• Choose “All time” from time range and check only "Cached images and files”, uncheck the rest.
• Click “Delete data”

Mozilla Firefox   

•  Click the three lines in the top right corner. 
•  Select “History" > “Clear recent history..." 
•  Select “Everything” from “When:"
•  Check only "Temporary cached files and pages”, uncheck the rest, click “Clear” 

Microsoft Edge    

•  Click the three dots in the top right corner. 
•  Select “Delete Browsing Data..." 
•  Choose “All time” from time range and check only "Cached images and files." , uncheck the rest.
•  Click “Clear now”

Safari      

•  Click "Safari" in the menu bar. 
•  Select "Clear History." 
•  Choose "All history" and click "Clear History."