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fetch changes method automatically from PUT to OPTIONS?

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Jul 15.2022

Here is my fetch:
https://jsfiddle.net/bsezdhfc/3/

And here is the log on the server
[url=https://postimages.org/][img]https://i.postimg.cc/8km6bVVN/logg.png[/img][/url]

Why the * does the method change from PUT to OPTIONS? Resulting in an error, as there is no routine for OPTIONS.

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2 Comments(s) ↴

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@sibertauthorJul 15.2022 — ["fetch changes from PUT to OPTIONS?","fetch changes method automatically from PUT to OPTIONS?"]
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@sibertauthorJul 16.2022 — Method OPTIONS (handshake sort of) is always sent before method PUT to verify it is OK to proceed.

I am not sure if it was this that helped, but now it is working. I added this to the API server:

w.Header().Set("Access-Control-Allow-Credentials", "true");
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