Fetch : status 302 in Edge 17 - json

Question

I'm using js fetch API to retreive datas from JSON.
It's working fine (even in IE 11), except in Edge 17 i get 302, the response header are :
Content-length : 0
Content-type: text/plain; charset=utf-8
Location: http://local.mysite.com/xxx
My local website is on a Mac, i'm using BrowserSync to make it reachable via 192.168.100.X:3000
Then i've updated my PC hosts file like this :
192.168.100.X http://local.mysite.com
Here's my fetch call :
fetch('/fr/fil-actualites-json', { mode: 'cors' })
.then(
function(response) {
console.log('code :' +response.status);
if (response.status !== 200) {
console.log('Looks like there was a problem. Status Code: ' +
response.status);
return;
}
// Examine the text in the response
response.json().then(function(data) {
// do some stuff
});
}
)
.catch(function(err) {
console.log('Fetch Error :-S', err);
});
Thx for your help ;)

Answer 1

Safari was throwing this error :
unhandled promise rejection syntaxerror the string did not match the expected pattern
I found the answer:
The default value for credentials is "same-origin".
The default for credentials wasn't always the same, though. The
following versions of browsers implemented an older version of the
fetch specification where the default was "omit":
Firefox 39-60 Chrome 42-67 Safari 10.1-11.1.2 If you target these
browsers, it's advisable to always specify credentials: 'same-origin'
explicitly with all fetch requests instead of relying on the default:
fetch('/users', {
credentials: 'same-origin'
})