How to make HTTP request to In Flutter Web

You can also Add the code below to your php file like so:

<?phprequire('connection.php');header("Access-Control-Allow-Origin: *");....code goes here....?>

I Tried this on LocalHost and it worked.

NB: If you're using nodejs install the cors() package and use like

var express = require('express')var app = express()var cors = require('cors')app.use(cors())

Check out the CORS package on npmjs

I literally just stumbled over the error myself. You are falling afoul of CORS... if you trace the underlying network traffic, you should see that it sends an OPTIONS request first.

To get it to "work" temporarily, you can launch Chrome with CORS turned off. Obviously, this is not a long term solution, but it should get you going. The command you need is:

open /Applications/Google\ Chrome.app --args --disable-web-security --user-data-dir

What I found out and solved the issue is

For Accessing a website made by flutter basically you are calling a JS script

and for any website to give access to a script (which in my case was another website I was accessing the api from ) you need to give some sort of clearance to access

Which is in this case is CORS - Cross-Origin Resource Sharing

Add below code to your websites .htaccess file

<ifModule mod_headers.c>    SetEnvIf Origin "http(s)?://(www.)?(localhost:55538|somedomain.com)$" AccessControlAllowOrigin=$0    Header add Access-Control-Allow-Origin %{AccessControlAllowOrigin}e env=AccessControlAllowOrigin    Header always set Access-Control-Allow-Methods: "GET,POST,PUT,DELETE,OPTIONS"</ifModule>    

adding this will now grant access to your flutter website to hit requests to your apis