'Access-Co​ntrol-Allo​w-Origin'

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Minxuan Xie
Minxuan Xie 2016-7-15
评论： Walter Roberson 2022-8-16
About matlab production server config, I am quite sure that I have add --cors-allowed-origins * in the server config file, but the browser still show me: XMLHttpRequest cannot load http://localhost:9910/BondTools/pricecalc. Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is therefore not allowed access. Anyone could be helpful? Thanks in advance
  2 个评论
ruike
ruike 2022-8-16
Hello, where is the --cors-allowed-origins * configured, I can't find the configuration file in my webapp project

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回答（2 个）

mohammed
mohammed 2018-3-12
save the file in html, open the file with Internet exploler. that is how it works for me, modern browser requires a complex security headers.
Neeraj Rajpurohit
Neeraj Rajpurohit 2020-6-30
Hi,
In my opinion this is because you are accessing the API from a file. You will need to apply different solutions to different browsers, the below link will help you to get a deep understanding.
Origin null is not allowed by Access-Control-Allow-Origin
Thanks,
Neeraj

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