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Pat Loga
81 PointsWhat is "cross-origin request" error? How do I NOT get it?
The answer about <divs> isn't my solution - In the initial React Scoreboard app, my window (only) shows Loading ...
the React Dev Tool says "babel-browser.min.js:4 XMLHttpRequest cannot load file:///Users/patrick/Desktop/ReactBasicsProject/app.jsx. Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension, https."
4 Answers
Nejc Vukovic
Full Stack JavaScript Techdegree Graduate 51,574 PointsHi Cross-Origin requests is a HTTP Request that is sent from your http://localhost for example to another server - www.example.com and if the server from www.example.com is not set for external access it fails with that error.
A bit more about CORS: https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS.
But to help you please post your code from app.jsx to see whats going on. Or maybe you fork your Workspace.
Pat Loga
81 Points```function Application(props) { return ( <div className="scoreboard"> <div className="header"> <h1>{props.title}</h1> </div>
<div className="players">
<div className="player">
<div className="player-name">
Jim Hoskins
</div>
<div className="player-score">
<div className="counter">
<button className="counter-action decrement"> - </button>
<div className="counter-score">31</div>
<button className="counter-action increment"> + </button>
</div>
</div>
</div>
<div className="player">
<div className="player-name">
Ella Fitzgerald
</div>
<div className="player-score">
<div className="counter">
<button className="counter-action decrement"> - </button>
<div className="counter-score">99</div>
<button className="counter-action increment"> + </button>
</div>
</div>
</div>
</div>
</div>
); }
ReactDOM.render(<Application title="My Scoreboard"/>, document.getElementById('container'));```
Pat Loga
81 PointsDo you want the index.html as well? ```<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Scoreboard</title> <link rel="stylesheet" href="./app.css" /> </head>
<body> <div id="container">Loading...</div>
<script src="./vendor/react.js"></script>
<script src="./vendor/react-dom.js"></script>
<script src="./vendor/babel-browser.min.js"></script>
<script type="text/babel" src="./app.jsx"></script>
</body> </html>```
Pat Loga
81 PointsNejc, Thank you! I didn't run any update or webpack or any other "bundling" to assure that this code is up to date. Did I miss any direction to do so? I am assuming the error would inform me if this is the source of the error.
Nejc Vukovic
Full Stack JavaScript Techdegree Graduate 51,574 PointsDid you download the Project data to your computer? Or are you using the Workspace?
When downloading to your computer it's good to run: "npm install" in the project root.
Pat Loga
81 PointsI downloaded the Project File, opened it in Atom , then deleted all the app.jsx code - so that I could follow along. When told to check, I pulled the index.html into my browser and ... it just says Loading forever.
I just ran npm install, but ... there's no package.json file. So I ran npm init, but that produces an empty package.json.
THANK YOU again for trying to help. Any further suggestions? (Do you need to see any other code snippets?)