HTML exports output in the past are not displayed (recurrence of #2606)

[holomorphism]

When opening HTML exports from an older version of Pluto, nothing is displayed. (Similar issue to Issue #2606, seems to be caused by esm.sh and many-keys-weakmap.js)

This phenomenon has been occurring since about 2023-10-23. The html file that causes the problem (looks almost the same as in #2606):

• Local html files output between approximately 2022-02-18 and 2023-04-06
• Introduction to Computational Thinking (Spring 2021) page (https://computationalthinking.mit.edu/Spring21/images/)

The following is the chrome DevTools screen shot when opening the Computational Thinking page:

The error message is as follows:

Failed to load resource: the server responded with a status of 500 ()
[https://esm.sh/v64/many-keys-weakmap@1.0.0/es2021/many-keys-weakmap.js]

I then clicked on the many-keys-weakmap.js link, which opened a page with the following content:

/* esm.sh - error */
throw new Error("[esm.sh] " + "could not resolve \"many-keys-weakmap/many-keys-weakmap\"");
export default null;

[fonsp]

i dont think we can fix this! 😭😭

@pankgeorg should we report it to esm.sh ?