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
helmetpackage - Add the
helmet.frameguard()middleware to Express application - Set the
actionparameter to eitherdenyorsameorigin - Optionally add additional parameters such as
allowFromto specify a whitelist of domains
Helpful links
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