Skip to main content

Get Support
Have a question? Let's get you an answer!

How Do I...? Troubleshooting Code & Webhooks Developer Zone

Other Help Resources
Wait, there's more! Check out these Community sourced spaces for additional resources.

Zapier Help Center Hire an Expert

Learning Resources
All of our best learning resources can be found here.

Featured Articles Show & Tell Zapier's products AI Hub Zapier Tools Hub

Share your knowledge
Give back to the Community by sharing your automation wins and helping to answer questions.

Share your success See unanswered questions User Groups

Other Learning Resources
Some of our favorite additional ways to upskill your Zapier knowledge.

Zapier Learn Zapier Blog Zapier Webinars

Product Updates
Check out what is new and upcoming with Zapier with our regular product updates.

Product Updates

Early Access Program
Want to join Early Access? Learn more here.

Question

Zapier is blocking request from GTM or Systeme.io

  • February 17, 2025
  • 2 replies
  • 39 views
H

I am having CORS issue.

 

I want to ask why Zapier is blocking request due to CORS issue when I am sending data from GTM to Zapier for Facebook conversion API, that are Click ID (fbc)  and Browser ID (fbp) and other parameters as well. You can say server side. 

 

Please help me out.

This post has been closed for comments. Please create a new post if you need help or have a question about this topic.

2 replies

Troy Tessalone
Zapier Orchestrator & Solution Partner
Forum|alt.badge.img+14
  • Troy TessaloneZapier Orchestrator & Solution Partner
  • Zapier Orchestrator & Solution Partner
  • February 17, 2025

Hi ​@Helal 

Help us have more context by posting these screenshots:

  • the encountered error
  • how your Zap steps are outlined and configured in EDIT mode with the field mappings visible
⚡ Troy Tessalone - AutomationAce.com | Platinum Authorized Zapier Solution Partner | #1 Zapier Community Contributor
H
  • Helal
  • Author
  • New
  • February 18, 2025

Please see the screenshots. 

 

In container loaded and Linkclick screenshots shows tags are fired perfectly, and FBP & FBC screenshot shows the values are also coming. But zapier webhook is not receiving any of these data, that are FBP and FBC as shown in Zapier.png. 

 

However, in WhatsApp Image PNGs shows the CORS error in Network tab when I click on button from my landing page (https://hrukniet.systeme.io/wallartbundle) which redirects the user to payment page URL (https://pages.razorpay.com/pl_PrBShUu7fAwnXc/view).

 

When I run the below command on Console I get the message which shows in the WhatsApp Image PNG

 

Landing page: https://hrukniet.systeme.io/wallartbundle

 

Payment Page: https://pages.razorpay.com/pl_PrBShUu7fAwnXc/view 

 

In conclusion, Zapier might rejecting the request coming from GTM or from my landing page URL. Please fix this or let me know if you need anything else. 

 

Thanks,

Helal 

6 Attachments
Terms & ConditionsAccessibility statement