Javascript functions correctly when the HTML file is opened locally, however, it encounters issues when accessed through an http-server

My HTML file includes an embedded web widget from tradingview.com with the following code:

<!-- TradingView Widget BEGIN -->
<span id="tradingview-copyright"><a ref="nofollow noopener" target="_blank" href="http://www.tradingview.com" style="color: rgb(173, 174, 176); font-family: &quot;Trebuchet MS&quot;, Tahoma, Arial, sans-serif; font-size: 13px;">Economic Calendar by <span style="color: #3BB3E4">TradingView</span></a></span>
<script type="text/javascript" src="https://s3.tradingview.com/external-embedding/embed-widget-events.js">
{
  "width": "510",
  "height": "600"
}
</script>
<!-- TradingView Widget END -->

When I view this code in jsfiddle or open the file locally, the finance widget displays properly. However, when I access it through a http-server running on my machine and visit http://localhost, the widget doesn't show up even though the file loads successfully. It seems like there is an issue with the script execution in this scenario.

Does anyone have any insights into what might be causing this problem?

Thank you.

javascripthtmlcss

Answer №1

Running code inside a script tag with a src tag is not allowed. According to the w3 documentation found here: https://www.w3schools.com/tags/tag_script.asp, it clearly states:

Note: If the "src" attribute is present, the script element must be empty.

Also, ensure that you can access secure web links on the server where you are testing this. Since the file's src is using HTTPS, there could be issues with handling secure external links. Try making a local copy of the file and running it locally to see if you encounter the same issue. If it works locally but not when pulling from an external source, then there may be an issue with fetching the file correctly.

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