Error with adding assets

Hello. I’ve meet with some trouble with adding asset.

It gave me answer with reqeured “total_seconds” so I inserted it into JSON, but again this error.
I tried using Bruno, in web I’ face with CORS problem.

UPD: req now is working, but now it don’t working only with browser, if I send one to one JSON like it from browser, I’ll meet with

@Nicky, I already created a pull request (that adds support for handling CORS) for that but the changes is not yet merged as it breaks Anthias. I’ll keep you posted.