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Caching

Tubely is a web application. It's accessed through a browser and browsers love to cache stuff. They love cache more than Scrooge McDuck.

I'll see myself out.

"Cache" is just a fancy word for "temporary storage". When a user visits a web application for the first time, their browser downloads all the files required to display the page: HTML, CSS, JS, images, videos, etc. It then "caches" (stores) them on the user's machine so that next time they come back, it doesn't need to re-download everything. It can use the locally stored copies.

Assignment

Run the server and open the app. Your video should already have the boots-image-horizontal.png uploaded, and you should be able to see it in the web page
On the same video, upload the boots-image-vertical.png image instead.
Refresh the browser

...what happened? Answer the questions.