Example showing how to process a web_sys::File in web workers

[LucaCappelletti94]

All web workers made available in gloo worker require for the arguments to be serializable and web_sys::File does not implement either serde::Serialize or serde::Deserialize.

It seems to me that files can only be processed in the web worker after having been fully loaded and the bincode serialized and submitted, which may block the page execution. This should not be the case as, apparently, in javascript there is a Worker.postMessage that can accept a File object, and this method is available in the web-sys bindings here: post_message. So, how do I process a File with a web worker?