expressjsHow can I set up X-Frame-Options in ExpressJS?
Setting up X-Frame-Options in ExpressJS is relatively simple.
To start, we'll need to import the helmet
package:
const helmet = require('helmet');
Next, we'll need to add the helmet.frameguard()
middleware to our Express application:
app.use(helmet.frameguard({ action: 'sameorigin' }));
The action
parameter can be set to either deny
or sameorigin
depending on your needs. deny
will prevent rendering of the page in a frame or iframe, while sameorigin
will allow rendering only if the origin is the same as the host.
We can also add additional parameters to the frameguard()
middleware, such as allowFrom
to specify a whitelist of domains that are allowed to render the page in a frame or iframe.
app.use(helmet.frameguard({ action: 'sameorigin', allowFrom: 'http://example.com' }));
That's all you need to do to set up X-Frame-Options in ExpressJS.
Parts:
- Import the
helmet
package - Add the
helmet.frameguard()
middleware to Express application - Set the
action
parameter to eitherdeny
orsameorigin
- Optionally add additional parameters such as
allowFrom
to specify a whitelist of domains
Helpful links
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