Resources for understanding CORS?

Resources for understanding CORS?
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#1

As it appears that I need to get a handle on CORS (at least I think that’s what’s up? I’d still really appreciate input in that thread), can anybody point me to something that can help? As in, understanding how to deal with an API that returns results only in XML, and perhaps it seems like CORS is the problem in working with that?


#2

This may help if you are using CodePen

This may also help you understand and learn more about CORS and also how to facilitate the use.


#3

I found that the key to my understanding of CORS and same-origin policy was to understand why they’re needed. To that end, learn about cross site scripting attacks. Computerphile has your back here, but also check out this site for examples and a deeper explanation.