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Cross-Origin hosting

Overview​

By default, the library expects its static files to be hosted on the same origin (domain) as the page that contains the chart. If you host library files on a different origin, follow the configuration steps below.

info

The TradingView demo storage server (https://saveload.tradingview.com) accepts requests only from localhost and tradingview.com origins. It does not support cross-origin setups for other domains. For production, implement your own storage backend. For details, see Saving and loading charts.

1. Load the standalone script​

Add the script tag within the <head> of the page.

<script
    type="text/javascript"
    src="https://example.com/charting_library/charting_library.standalone.js"
></script>

2. Configure the widget constructor​

When creating the widget, set library_path to the absolute URL of the folder that contains the library static files. Note the following:

  • The URL must start with http:// or https://.
  • The URL must end with a trailing forward slash /.

Example:

const widget = new TradingView.widget({
    library_path: 'https://example.com/charting_library/',
    symbol: 'AAPL',
    interval: '1D',
    container: 'tv_chart_container',
    datafeed: new Datafeeds.UDFCompatibleDatafeed("https://demo-feed-data.tradingview.com"),
});

3. Configure CORS​

Because the library fetches resources from the library_path, your remote server must allow Cross-Origin Resource Sharing (CORS). Make sure that the server hosting the library files is configured to allow Cross-Origin requests from the origin of the page containing the chart element. Otherwise, the browser may block internal library resources, causing a blank chart or console errors. For guidance, see Access-Control-Allow-Origin header.