CORS and S3 Simply Explained (The Theory) | Cross-Origin Resource Sharing | AWS Training

In this video, I explain CORS with a real-world analogy for how we communicate with other people, then review what makes up a “domain.” From there, I walk through an S3-specific example, showing how an HTML page in one S3 bucket can interview with an HTML page in a second bucket.

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00:00 – What is cross-origin resource sharing or CORS?
00:38 – A simple analogy of CORS in the real world
01:01 – Understanding the different parts of a domain
01:27 – What does it mean to be cross-origin?
02:13 – CORS is enforced by the browser (not AWS)
02:38 – Walking through an example of CORS with Amazon S3 buckets

[kamehameha]

Your analogies make complex concepts easy to understand. Thank you

[PrabnoorMalhi]

You have the best AWS Tutorials and the way you explain them is EPIC!!

[djmoosecom]

Thanks for this! Wanted to brush up on CORS before my Security Specialty exam later this morning!

[SusmitaDey-il]

It is really a great video. Thank you so much for sharing the knowledge in such a easy way. I have seen several other videos, but this one video was really useful.

[lidalida]

Thanks for the video. The sound is off a bit. I am not sure what the issue is, but it impacts the quality of what you are saying. It is challenging to listen to the video, even though the content is great.

[partha.m]

I’m getting CORS error for a React application, how to solve it

[Blowjin]

Thanks! It wasn't work for me without protocol/port. This is a key, very helpful.