Broken script link in example

[DTayloe]

I noticed this error message in the console when this example is loaded from the main Github page:

Uncaught NetworkError: Failed to execute 'importScripts' on 'WorkerGlobalScope': 
The script at 'https://unpkg.com/@hpcc-js/wasm@2.20.0/dist//graphviz.umd.js' failed to load.
    at 4af3883f-bf22-4cf4-bc8a-ee8f9ada71d4:7:9

Problem:
There are two forward slashes after dist

[laughinglion]

Same type of issue on my website, using https://unpkg.com/d3-graphviz@3.0.5/build/d3-graphviz.js

If i manually remove the one slash then the wasm file downloads.

The error:

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://unpkg.com/@hpcc-js/wasm@0.3.11/dist//graphvizlib.wasm. (Reason: CORS header ‘Access-Control-Allow-Origin’ missing). Status code: 404.