FETCH request doesn't work unless I refresh my page - node.js

Question

I have a React-Ionic web app doing some queries to a custom NodeJS server. I can read users but I cant create one unless I refresh my page. All of my GET and POST queries are working properly after I refresh my page.
Here is my function to create a User. Every log are showing except 'USR SUCESSFULLY LAUNCH...'
export async function createUser(p_user: StudentSkeletonDB) {
//Normalize name guid familyname and comments
//Removing all specials characters
console.log("USR STARTING TO CREATE :")
let newUser: StudentSkeletonDB = p_user;
newUser.firstname = newUser.firstname.replace(/[~`!##$%^&*()+={}\[\];:\'\"<>.,\/\\]/g, '');
newUser.guid_id = newUser.guid_id.replace(/[~`!##$%^&*()+={}\[\];:\'\"<>.,\/\\]/g, '');
newUser.familyname = newUser?.familyname != undefined ? newUser.familyname.replace(/[~`!##$%^&*()+={}\[\];:\'\"<>.,\/\\]/g, '') : "";
newUser.comments = newUser?.comments != undefined ? newUser.comments.replace(/[~`!##$%^&*()+={}\[\];:\'\"<>.,\/\\]/g, '') : "";
console.log("USR NORMALIZED :")
console.log(newUser)
var myHeaders = new Headers();
myHeaders.append('Content-Type', 'application/json');
myHeaders.append('Content-Lenght', '' + JSON.stringify(newUser).length);
var data = new FormData();
data.append("json", JSON.stringify(newUser));
console.log("USR SENDING... :")
return await fetch("http://127.0.0.1:8083/signup", {
headers: myHeaders,
method: 'POST',
body: JSON.stringify(newUser)
}).then((s) => {
console.log("USR SUCCESSFULLY LAUNCH... :")
return s;
});
}
On my NodeJS Server, even the first log is not showing.
exports.postSignup = async(req, res, next) => {
//getting user data from request body
console.log("STARTING TO CREATE USER")
const { guid_id, firstname, familyname, _password, birthday, usertype, class_id, login, filenumber, avatar, language, isactive, ef_sessionpid, comments, connected, created, simu_password, gender, driving_school_code, nb_connection } = req.body;
try {
const user = new User({
guid_id,
firstname,
familyname,
_password,
birthday,
usertype,
class_id,
login,
filenumber,
avatar,
language,
isactive,
ef_sessionpid,
comments,
connected,
created,
simu_password,
gender,
driving_school_code,
nb_connection
});
const result = await user.createUser();
result.send(user);
} catch (error) {
const errorToThrow = new Error();
switch (error.code) {
case '23505':
errorToThrow.message = 'User already exists';
errorToThrow.statusCode = 403;
break;
default:
errorToThrow.statusCode = 500;
}
//pass error to next()
next(errorToThrow);
}
};
I repeat it, but if I refresh any page of my web app, then create a User, everything works properly and al my logs (even NodeJS) are showing. My newUser object is fine even without refreshing, it look like fetch itself doesnt work.
I tried to change fetch url to something totally wrong like return await fetch("http://127.0.0.1:8083/dzedzededze/dzedze)" and it doesn't even raise an error.

Answer 1

FIXED IT !
The previous request on my NodeJS server was crashing something.
All POST requests were in a queue.
There was multiples error in my code like Content-Lenght. I'm not very good in english : 'ght' and 'gth' are a big weakness of mine.
data was not used either.