I noticed that when I upload a Canvas, it gets saved to Google Chrome memory and can't see changes.

there are lots of ways to prevent caching some more reliable than others and depending on whether you want "live" updates/refreshes (eg, like web-based email).  the most easy and reliable depend on your server language. eg, here's for an apache server, https://support.tigertech.net/prevent-caching

i generally like more direct control and often use an index.html page that loads the main.html page with a query string appended.  here's an example where i use javascript to load the start page:

in index.html:

<script src="js/main.js?v="+1></script>  // for deployment i just increment a version number so users can cache

<script src="js/main.js?v="+new Date().getTime()></script>  // for testing

https://www.webinstinct.com/faq/how-to-disable-browser-cache#:~:text=When%20you%27re%20in%20Google,close%20out%20of%20Developer%20Tools.