Is it feasible to obtain the source code of a webpage using JavaScript on the client side? Perhaps with AJAX?
However, can I ensure that the server from which I am downloading the URL sees the client's IP address? Using AJAX could potentially reveal my script server's IP address, correct?
Thank you in advance.
It is not possible for JavaScript to retrieve resources from domains other than its own.
An AJAX request works in the same way as a regular request, but it is made asynchronously, allowing other processes to continue while waiting for a response.
When making a request with JavaScript, the client's IP address will be visible since the request originates from the client side.
If you set up a service on your server to handle the retrieval, it may be feasible to accomplish this task. In that case, your AJAX-request would need to call a URL similar to the one shown below:
By taking this approach, you can bypass the XSS-security measures in place on your browser. However, keep in mind that the external server will only see the IP address of your server, not that of the client making the request.
One common security vulnerability is known as cross-site scripting (XSS), which current browsers block to protect users.
In addition, when a page includes content from a different server (such as an image), that server can potentially access the client's IP address, revealing information about their location or network setup.
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