Chrome开发者工具找不到HttpRequest

Question

In Python, I'm using the requests library to POST an HTTPRequest to a URL. When I click this button however, it looks like nothing happens when following Chrome Developer Tools. No XHR requests, nothing is POSTed.

When I click the button, a new window is opened, then immediately redirected to another page. I'd like requests to POST a payload, then store the returned page after the redirect.

Here's the button in the HTML:

<button type="button" id="form_submit" class="querysubmit" name="querysubmit" onclick="if (document.regform.onsubmit()) {$j('#queryform').submit();setTimeout('document.getElementById(\'form_submit\').disabled=false;document.getElementById(\'form_submit_image\').src=\'/img/btn_submitquery.gif\';',10000);this.disabled=true;document.getElementById('form_submit_image').src='/img/btn_querysubmitted.gif';}">
                     <img id="form_submit_image" src="/img/btn_submitquery.gif" alt="Submit Query">
                </button>

I'm trying to find the POST HTTPRequest so that I can add a payload to the request.

new_page = session.post(QUERY_URL, data=payload_dict)

Does anyone know why when I hit the "Submit" button, nothing occurs in Chrome Developer tools yet a new page opens that processes the request?

Answer 1

You need to enable the "Preserve Log" option in the Network Panel. This will save the primary request information (but not the raw data!) for requests on page movement.

Your issue stems from the "immediately redirected to another page". When page movement occurs, DevTools dumps everything it can to conserve memory. You would be better off using AJAX to submit the request and handle any response, that way no page redirect occurs.