Allow X-Frame-Options is a free Chrome extension developed by Lynn. It falls under the category of Browsers and is classified as an Add-ons & Tools subcategory. The primary function of this extension is to easily remove the X-Frame-Options from the HTTP response header.

To use this addon, simply open the toolbar popup and click on the toggle button located on the left side. Once the addon is enabled, the browser will ignore the X-Frame-Options for all iframes within websites. If you wish to whitelist a specific domain, you can do so by clicking on the "Add to whitelist" button on the toolbar popup. Additionally, there is an option to enable the addon on a per-tab basis from the options page. It's important to note that the whitelist feature is not available when using the per-tab mode.