# Does Web Unblocker have JavaScript rendering?

Yes, with Web Unblocker, [JavaScript rendering](/products/web-scraper-api/features/js-rendering-and-browser-control.md#javascript-rendering) is executed on our side, so you don’t have to worry about it. Instead of setting up a headless browser by yourself, you can include the `X-Oxylabs-Render` header in your requests with either `html` or `png` value. Response data will then be an HTML output or PNG screenshot accordingly (depending on the parameter passed).&#x20;

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