CORS are simple (with examples). Part 1
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This is the first part of a video series on HTTP security headers.
In this video I will tell you about CORS (Cross Origin Resource Sharing). What problems you might run into, how to solve them, how to deal with CORS issues, what the "crossorigin" attribute means, why script errors sometimes contain a "Script error." message instead of a real error message, and how to fix it.
The best place to read about it:
https://developer.mozilla.org/en-US/d...
Time codes:
0:00 Introduction
2:16 Same-Origin request
3:03 Cross-Origin request without CORS
13:52 Preflight OPTIONS request
20:05 Cross-Origin request with CORS
25:15 "crossorigin" element attribute
33:31 JSON Cross-Origin request with CORS
37:18 Buy words