Add keepNames to esbuild options

[bananabrann]

Hi @geoffrich, thanks for the work you do here. It's a little change, but I hope it's correct. I'm pretty new to SvelteKit, so admittedly I'm not quite sure how I could go about testing this adapter locally. Double whammy, I've also never contributed to anything open source before. If I need to do more, please just let me know and I'll learn and give a go this weekend 🏎️

My use case was mentioned in #148 --this is causing a bug that prevents me from logging entries on my grandma's TV app (that's secretly a SvelteKit website)

Closes #148
Mentioned in #51 #56

[tlaundal]

Change looks good! Perhaps also update the relevant README section?

[geoffrich]

This looks good! Can you test this branch out with your project and confirm it fixes the issue? You can install this adapter from your GitHub branch with the following command:

npm i github:bananabrann/svelte-adapter-azure-swa#bananabrann/%23148-external-esbuild

[bananabrann]

Sure thing @geoffrich ! I'll try it out today
Thanks so much for including the command

[bananabrann]

Looks like these changes work for me 🥳 Here are some details that (hopefully) make it easy for you to confirm these changes are indeed what fixed it for me

Demo with forked adapter (working)

https://black-mushroom-06e3d7310-56.centralus.3.azurestaticapps.net/ask

Send a message a see that it works just fine
FYI, I receive your IP address and the text you typed, but I don't do anything with it

Demo of adapter ^0.16.0 (not working)

https://black-mushroom-06e3d7310-57.centralus.3.azurestaticapps.net/ask

Send a chat message, observe scary error

TypeError: Expected signal to be an instanceof AbortSignal

I have the bad site PR'd off the good site so you can see that the only change is the adapter

[geoffrich]

I think this looks good, thanks for your PR and for testing it out! I'll release the next adapter version with the fix momentarily.