Collecting link hints fails entirely for page with invalid HTML `area` coordinates

Describe the bug

Vimium fails to show any link hints on the following website after pressing f: https://nba.uth.tmc.edu/neuroanatomy/index.html.
I've tested this on both Firefox and Chrome.

To Reproduce

Steps to reproduce the behavior:

Go to URL "https://nba.uth.tmc.edu/neuroanatomy/index.html".
Press f.
Notice the corner pop-up: "Collecting hints..."
Even after the pop-up goes away, nothing more happens. The expected behavior is that we should now see link hints on all valid links on the page.

Developer Console Output

Firefox:
TypeError: Document.elementsFromPoint: Argument 1 is not a finite floating-point value. link_hints.js:1179:14
Chrome:
Uncaught (in promise) TypeError: Failed to execute 'elementsFromPoint' on 'Document': The provided double value is non-finite. at Object.getElementFromPoint (link_hints.js:1236:14)

MWE I've created a minimal, working example based on the above webpage which exhibits the same behavior:

<!DOCTYPE html>
<html>
  <body>
    <img src="https://nba.uth.tmc.edu/neuroanatomy/Assets/images/nao_logo_narrow_MMS.gif" width="955" height="100" usemap="#Map">
    <map name="Map">
      <area shape="poly" coords="5,5" href="#">
    </map>
    <a href="https://nba.uth.tmc.edu/neuroanatomy/index.html">Home

I believe the error occurs because the page uses invalid coordinates for the area tag. The HTML standard says there must be at least 3 coordinate pairs, but this example only uses one pair. Simply adding one more coordinate pair fixes the problem and link hints are properly shown (e.g. coords="5,5,10,10").

Browser and Vimium version

Firefox 118.0.1, Vimium 1.67.7, OS: Linux 6.5.5-arch1-1 #1 SMP PREEMPT_DYNAMIC Sat, 23 Sep 2023 22:55:13 +0000
Chrome 117.0.5938.132 (Official Build) (64-bit), Vimium 2.0.3, OS: Linux

philc / vimium

Collecting link hints fails entirely for page with invalid HTML `area` coordinates #4342