Boost: Conflict with WooCommerce shipping resulting in a checkout page error

[dilirity]

When a website is running WooCommerce, WooCommerce Shipping and Jetpack Boost with Concatenate JS enabled, the checkout page breaks with a JS error:

References

p1734605309871569-slack-C7U3Y3VMY
p1734608265003869-slack-CDLH4C1UZ

Steps to reproduce

• Setup Jetpack Boost free (latest - 3.6.1);
• Enable Concatenate JS;
• Setup WooCommerce and add one product;
• Install and activate WooCommerce Shipping (version 1.3.+ from here U023HUZP875/F0866V35G01-slack-file);
• Add the product to the cart and go to the checkout page;
• The checkout page should be broken and the console should show an error like the one from the screenshot.

[github-actions]

OpenAI suggested the following labels for this issue:

• [Feature Group] Customer Seller Experience: The issue affects the checkout process, which directly relates to customer purchasing activities.
• [Feature] WooCommerce Analytics: The issue involves WooCommerce and could impact its analytics functionality related to checkout.
• [Feature] Concat: The problem arises when Concatenate JS is enabled, indicating an issue with this specific functionality.

[github-actions]

This issue could use some more labels, to help prioritize and categorize our work. Could you please add at least a [Type], a [Feature], and a [Pri] label?

[Robertght]

@dilirity I can see this is on your team's TO DO board.

I gave this a shot on WordPress.com but I wasn't able to replicate it so far, but if you need PAs to give it a second try, please let me know.