Getting image data from blob url

I have image elements in my DOM that use blob URL in their src attribute.
Think like this:

 <img class="full-media opacity-transition slow open shown" width="432"
 height="432" alt="" draggable="true"
src="blob:https://web.telegram.org/1c037f99-5201-45de-937c-548da5706021">

What I want is to be able to do some ocr on this image , however fetching the full url or even without the blob gives me a 404. How can I get the image either as a file or any acceptable format for tesseract.recognize?