parallel.axisExpandable example in documentation doesn't work

[dominic-simplan]

Version

5.0.2

Reproduction link

https://echarts.apache.org/en/option.html#parallel.axisExpandable

Steps to reproduce

Go to https://echarts.apache.org/en/option.html#parallel.axisExpandable

What is expected?

parallel.axisExpandable example should show up

What is actually happening?

Nothing is shown.

[echarts-bot]

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