handleError method throws error: Object.assign requires that input parameter not be null or undefined

[alexmandrikdev]

Greetings!

According to our error tracker, the code below is causing an error in Safari browsers, stating that Object.assign requires that input parameter not be null or undefined. I'm afraid this issue hides many important error messages from us. I don't even know which part of the application throws the error that the handleError method wants to handle or which parameter is null or undefined.

alpine/packages/alpinejs/src/utils/error.js

Line 10 in a0a6b74

Object.assign( error, { el, expression } )

Can you help me fix this problem?

Thanks!

[SimoTod]

it should be error because the second parameter is always an object. Do you have a stack trace or are you just logging the exception message?

[alexmandrikdev]

The stack trace we have is relatively poor. I don't know why, but Flare doesn't use the sourcemaps uploaded by the sourcemap plugin.

https://flareapp.io/share/353bZL97#F1

[alexmandrikdev]

There is another error that may be related to this: https://flareapp.io/share/dPbqgRgm#F2

[joshhanley]

This issue has been converted to a discussion as we are now using discussions to track bugs and ideas.
See this announcement for more details #1423

[alexmandrikdev]

Okay, thank you!

[ekwoka]

This is strange. it shouldn't ever have undefined or null unless someone is playing hard and fast with throw

In this case, this won't be doing much to reduce your logs, since the issue is that something is throwing nothing.

Like they just do throw; without actually throwing an error. or having the thing AFTER throw be on a new line (can't do that).

So its most likely in your own code, but could be another library underneath it. Not really supposed to throw nothing.

[alexmandrikdev]

The strange thing is I can't reproduce this error. We're just getting the error reports from Flare. I'm afraid it is reproducible only on specific devices/browsers.

[ekwoka]

It is quite strange.

I'll make a PR to handle bad throws.

[alexmandrikdev]

Thank you!