husani0nl9_webhooks | Stripe Developers | Page 1

real ledgeBOT Jul 8, 2025, 4:32 PM

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hybrid plover Jul 8, 2025, 4:58 PM

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Hi hi! Sorry for the delay. Digging now.

quiet sequoia Jul 8, 2025, 5:04 PM

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hybrid plover Hi hi! Sorry for the delay. Digging now.

No worries! Thanks for taking on the issue/case. Hopefully it's an easy find/fix. 🤞

real ledgeBOT Jul 8, 2025, 5:16 PM

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hybrid plover Jul 8, 2025, 5:16 PM

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Hi! As far as I know nothing has changed on our end - it looks like your webhook endpoint is returning "Invalid encoding: ISO-8859-1" - what are you seeing in your server's logs?

quiet sequoia Jul 8, 2025, 5:20 PM

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com.stripe.exception.SignatureVerificationException: Unable to extract timestamp and signatures from header
at com.stripe.net.Webhook$Signature.verifyHeader(Webhook.java:75)
at com.stripe.net.Webhook.constructEvent(Webhook.java:50)
at com.stripe.net.Webhook.constructEvent(Webhook.java:30)
at com.bldings.servlet.main.StripePostbackServlet.processRequest(StripePostbackServlet.java:61)

Line 61 in my "StripePostbackServlet" is:
event = Webhook.constructEvent(payload, sigHeader, endpointSecret);

The peculiar thing is that nothing changed on my end. Not in my code, not on my development platform, so I'm curious why this started happening.

hybrid plover Jul 8, 2025, 5:21 PM

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Do you log the sigHeader?

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Can you give me an example Event ID where this failed?

quiet sequoia Jul 8, 2025, 5:23 PM

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hybrid plover Do you log the `sigHeader`?

😔 Sadly, no. And also since I didn't become aware right away, I can't see any events in Stripe when things were working.

quiet sequoia Jul 8, 2025, 5:23 PM

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hybrid plover Can you give me an example Event ID where this failed?

Yeah, the one I included was the most recent one, but I have 60+ event IDs I can give you. All failed.

hybrid plover Jul 8, 2025, 5:23 PM

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Any one will work - just chuck it at me. 🙂

quiet sequoia Jul 8, 2025, 5:25 PM

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Here's three different ones:
"evt_3Rg4O64KPcxXJ3gQ0UG1KqYX"
"evt_1RiPMX4KPcxXJ3gQKJrs9PLx"
"evt_1RgvBm4KPcxXJ3gQMMBMVkLz"

stray anchor Jul 8, 2025, 5:33 PM

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fyi i'm taking over this thread! i'm catching up on a few things but i'll get back to you asap

quiet sequoia Jul 8, 2025, 5:37 PM

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stray anchor fyi i'm taking over this thread! i'm catching up on a few things but i'll get ba...

Okay! Thanks for the heads up.

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Actually, I'm going to need to walk away for a bit. So, I might be unresponsive for the next few hours.

stray anchor Jul 8, 2025, 5:39 PM

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ok no worries! i'll still try to look into this for you and drop an answer here. also FYI the thread may be closed when you come back, but you can start a new one and it will automatically include a link to this one

real ledgeBOT Jul 8, 2025, 5:50 PM

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stray anchor Jul 8, 2025, 5:54 PM

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ok, it looks like your server is throwing a 400 when we try to call your webhook. i see we're getting this in the response body which i would use as a starting point for troubleshooting why you're returning the 400: Invalid encoding: ISO-8859-1

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i see for example this stackoverflow thread which has some suggestions that may or may not be applicable:
https://stackoverflow.com/questions/55119582/invalid-encoding-iso-8859-1-in-laravel-webhook-api-for-stripe

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