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I'm trying to make an HTTPClient Call from Angular Plugin for Outlook and i receive this error :

SEC7123: L’en-tête de demande content-type n’est pas présent dans la liste Access-Control-Allow-Headers.

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  • seems like you did not define content type see stackoverflow.com/questions/53618872/… Commented Jan 28, 2020 at 10:39
  • the error says that you are using custom http header, and by CORS policy it should be allowed with your backend response Commented Jan 28, 2020 at 10:50
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