How to enable context menu on DoodStream site?

Question

Web development

Hey! The problem is that the right mouse button does not work on the site and there is no way to select save video as when clicking on the video. How to enable the context menu on the site to download the video? Can't download via devtools.
There is such an extension

Extension

https://chrome.google.com/webstore/detail/allow-ri...

Through it, it is possible to download a file in mp4 format. If you turn off styles and turn on controls for the video tag, you can get to the download button (three dots), but something is not downloading, not an mp4 file like through the extension. How can I cancel a script or a part of a script that forbids calling devtools and the context menu? I tried pasting the line javascript:void(document.oncontextmenu=null) into the browser, but that didn't help.
I do not want to use extensions, I want to disable it somehow with my hands.
PS I'm not a programmer, so I don't really understand this, don't kick me.

Video example

dood.watch/e/36bclkycxl5n