Hello I have a worry, I tried to put my api rest done with slim framework. I have an error in “the acces control origin has multiple value, one is allowed”, by looking a little on the head of return I notice that I receive the data in duplicate that this Either on chrome or internet explorer How to solve this ??
To know that I do not use CORS middleware because it did not work or I could not make it go so I wrote the headers directly at the beginning in my php
Thank