How Can I Disable Autoescaping in Flask/Jinja2 to Render HTML Correctly?

Disabling Autoescaping in Flask/Jinja2

When utilizing Flask's render_template feature, the framework inadvertently escapes HTML characters, transforming them into HTML entities. This can be problematic for displaying custom HTML content as intended. To remedy this, Flask utilizes the concept of autoescaping to prevent potential security vulnerabilities.

Solution:

To disable autoescaping and render HTML content correctly, employ the |safe filter within the template. This filter instructs Jinja2 to trust the provided data, suppressing the automatic escaping process.

Example:

{{ something|safe }}

However, it's crucial to exercise caution when utilizing |safe. Only use it on trusted data, as rendering untrusted data without proper escaping introduces the risk of cross-site scripting vulnerabilities.

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