Json LD response are encoded to HTML chars ?

[BenWaNH]

API Platform version(s) affected: 2.7

Description
I meet a curious issue with my actual Api Platform projet. My API response is not encoded in the same way according content negotiation if i've a value with some special chars like éàù
If i request my Account entity endpoint: /accounts/{id}
My response in jsonld:

{
    "@context": "/api/contexts/Account",
    "@id": "/api/accounts/2",
    "@type": "Account",
    "id": 2,
    "name": "TEST 2 é à ù"
 }

My response in json:

{
    "id": 2,
    "name": "TEST 2 é à ù"
 }

So it's not display correctly on client side, is it normal??
Do i miss something?

Thanks
BenWa