CORS Policy

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1

I am developing a flutter web application. When trying to request an api on the wix site it gives the following error

Access to XMLHttpRequest at ‘https://www.marketplacesul.com.br/_functions/lojas’ from origin’ http://web.marketplacesul.com.br ‘has been blocked by CORS policy: No’ Access-Control-Allow -Origin 'header is present on the requested resource.

Any solution?

2

You can read more about that in the Wix HTTP Functions API and options.
https://www.wix.com/corvid/reference/wix-http-functions.html#options

3

Change the below origin strings to your own origin.

This should resolve your CORS issue.

import { ok , badRequest , response } from ‘wix-http-functions’ ;

function validate ( origin ) {
if ( origin == “http://localhost:4200” || origin == “http://localhost:4201” ) {
return true ;
} else {
return false ;
}
}

export function options_yourFunctionName ( request ) {
console . log ( request );

let  headers  = { 
    "Access-Control-Allow-Methods" :  "POST, GET, OPTIONS" , 
    "Access-Control-Max-Age" :  "86400" 
} 

if  ( validate ( request . headers . origin )) { 
    headers [ "Access-Control-Allow-Origin" ] =  request . headers . origin ; 
} 

return  response ({  "status" :  204 ,  "headers" :  headers  });

}

export function post_yourFunctionName ( request ) {
console . log ( “post_duxLogin” );
const _response = {
“headers” : {
“Content-Type” : “application/json” ,
}
};

if  ( validate ( request . headers . origin )) { 
    _response . headers [ "Access-Control-Allow-Origin" ] = 
        request . headers . origin ; 
    _response . headers [ "Access-Control-Allow-Headers" ] =  "Content-Type" ; 
} 

// Perform other things here....

}

4

This does not work for me, I woul like to access elements of my wix website through iframe of a non-wix website but I can’t make it work. Anyone that has another solution?
Extra info: the page I want to manipulate is a password-protected page of which I know the password, I would want it to automatically change the input value to the correct password and submit so that only people that access my non-wix website can access the wix website through that iframe.