How to enable XHR HTML mode in DEV version of Safari?

Question

safari

Good evening. Switched to a poppy because of its huge autonomy. In order not to deal with torment with passwords, I decided to use safari, but immediately discovered that it did not have the opportunity to view XHR at all. I googled and it turned out that Safari has a Dev version with WebKit included. I downloaded it, thank the gods XHR is. But I debug the server and it returns a response in HTML format. And safari literally shows me the HTML code without visually converting it into what I need, as Google Chrome does by default. Is it possible to enable this feature so that it normally shows me the XHR response from the server in the DEV panel?