How to validate iframe in react.js?

@tressie.damore 

To validate an iframe in React.js, the first step is to check if the iframe URL is safe and from a trusted source. You can use the src attribute of the iframe element to set the URL and then validate it using regular expressions or other methods to ensure it is a valid URL.

Here is an example of how you can validate an iframe in React.js:

1. Create a function to validate the iframe URL:

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const validateIframeUrl = (url) => {
  // Regular expression to validate the URL
  const urlPattern = /^(https?|ftp)://[^s/$.?#].[^s]*$/i;
  
  // Check if the URL matches the pattern
  if (url.match(urlPattern)) {
    return true;
  }
  
  return false;
}

1. Use the validateIframeUrl function in your component to validate the iframe URL before rendering it:

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const iframeUrl = "https://www.example.com";

// Check if the iframe URL is valid
if (validateIframeUrl(iframeUrl)) {
  return (
    <iframe src={iframeUrl} title="Embedded content" />
  );
} else {
  return (
    <p>Invalid iframe URL</p>
  );
}

This way, you can ensure that the iframe URL is valid before rendering it in your React component. Remember to always sanitize user input and validate any external content to prevent security vulnerabilities.