400 Bad request error on server-side calls (google.script.run) from a GAS web app

[Faustino Rodriguez]

Since Jan.17 a Google Apps Script project published as a web app started to throw an error when calling a server side function using google.script.run

- the error in the browser console (client side) looks like this (I did shorten the ID and Token for simplicity)

POST https://script.google.com/a/thexs.ca/macros/s/AKfQSzx/callback?nocache_id=5&token=AJuL227 400 (Bad Request)

Also, 

- There is no error registered server side, I guess it's not getting there

- It is happening for both /dev and /exec calls

- The GAS web app has worked for many years

- Last deployment is from Dec.21 2023

I guess this might be caused by a change from Google in the workflow from browser to server

Is anybody else having this issue OR have an idea about it?

Thanks, Fausto

[Xe Pueblos]

Hello Faustino,

We are having the same error on our end. It is either a post error 400 or error 500 message.

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Best Regards,

Xe Pueblos My Amazon Guy - IT Specialist

[Faustino Rodriguez]

Thanks. I also opened this ticket in the GAS Issue Tracker asking Google for help 

https://issuetracker.google.com/issues/320950237

[Emerson Maia]

Good afternoon, is your app on V8?

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[Jacob Edward]

I am also having a 400 error... however its only if I attempt to upload the 4 MB version of my app... the smaller file size is still working... idk what that means, I did a search and a few different things are telling me the limit is 50 MB... I've never had this problem before either...

[Jacob Edward]

I found out the error was from some silliness with my meta object containing URLs that messed something up... Deleting that section and the 400 goes away and successfully completed, maybe that's something to look out for you too but 400s can be lots of things 

On Thu, Jan 18, 2024, 5:15 PM Jacob Edward <oughtimp...@gmail.com> wrote:

I am also having a 400 error... however its only if I attempt to upload the 4 MB version of my app... the smaller file size is still working... idk what that means, I did a search and a few different things are telling me the limit is 50 MB... I've never had this problem before either...

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