I’m currently working through the N8N102 course and have run into an issue with the Webhook Assessment Tool that I haven’t been able to resolve. After correctly configuring my webhook (details below), submitting the form causes the page to render as a completely blank white screen. I’ve tried the f…

@Lewis_Crate thats not your workflow, the N8N102 webhook tester endpoint blanking is a known academy-side bug, it got reported and marked fixed here Webhook-tester endpoint is responding blank but looks like its back. since youve already ruled out browser/cache its on their end, nothing to change in…

look like that ticket was marked solved so i cant reply on it for now, thank you though

@jamiemadden_n8n This user is having the same issue that apparently got fixed, did it regress?

Hello, Which step is it blanking on testing? Can you also message me your assessment_id and your workflow. cheers,

Hi there it was step 1 in the webhook test, where you have to test the webhook set up with assessment id. i have just sent you a message

@jamiemadden_n8n Assessment ID: cecdfade24ca490151a54c15ec5e17c4

This isn’t a known bug and I’m unable to replicate it at this time. I continue to add more and more validation for edge cases as they show up.

I am unsure if my scenario is valid, but I have encountered this blank screen before when using the ‘test’ webhook URL (e.g, ``https://host.name/webhook-test/course/n8n102/new-order``) and clicking ‘execute webhook’ to listen for events. I am aware that in this mode, the system only listens and resp…

@Lewis_Crate can you screenshot your console when you access the page?

Course N8N102 Integrations: APIs & Connected Workflows - weebhook tester blanking

n8n Academy N8N102: Integrations: APIs and Connected Workflows

jamiemadden_n8n June 30, 2026, 7:29am 12

I’ve added another note in the unit to highlight that the webhook must be published for the webhook tester to work.

Webhook Tester in n8n102 course returns blank white screen during testing

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Course N8N102 Integrations: APIs & Connected Workflows - weebhook tester blanking

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