How to Safely Render HTML Strings as JSX in React?

Convert HTML Strings to Renderable JSX in React

Introducing the React Dilemma

When displaying data received via AJAX requests in ReactJS, developers often encounter a common issue: the data appears as plain text instead of rendered HTML. This occurs due to React's default behavior of escaping HTML content to prevent Cross-site scripting (XSS) vulnerabilities.

Unveiling the Solution

To address this challenge, React provides the dangerouslySetInnerHTML property. By utilizing this property, developers can render HTML strings as React elements. However, it's important to note that this approach carries inherent risks and should be used with caution.

Crafting the Solution

To illustrate the usage of dangerouslySetInnerHTML, consider the following example:

<td dangerouslysetinnerhtml="{{" __html: this.state.actions></td>

In this code, the HTML string from the AJAX response (stored in this.state.actions) is rendered within a td element. This allows the HTML content to display correctly within the React application.

A Note of Caution

While dangerouslySetInnerHTML solves the HTML rendering issue, it's crucial to exercise vigilance when using this property. Any potential XSS vulnerabilities in the HTML string can compromise the application's security. It's advisable to use server-side sanitization techniques to ensure the integrity of the HTML content before rendering it in React.

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