Elimination of CORS error in the online store (NESPI CMS)

Budget: 2000 UAH Deadline: 2 days

Good day! My colleague and I have been professionally engaged in web development and setting up tracking systems for over 4 years, so we will help you restore the correct operation of the chat module and data transmission to analytics, eliminating request blocking according to CORS policy. We will implement proper handling of OPTIONS requests at the level of your CMS or web server (Nginx/Apache), which will allow the browser to seamlessly exchange data with your external resources. Our 4 years of experience is confirmed by projects drkukharevich.rivne.ua, crave-agency.com.ua, jk-solution.com.ua.

Budget: 2000 UAH Deadline: 1 day

Hello! My partner (designer + full-stack) and I have been specializing in technical support for online stores and working with custom CMS for over 4 years, so we will promptly fix the CORS error that is blocking your chat and data transmission in GTM. We will configure the correct Access-Control-Allow-Origin headers on the server side or in the configuration of your NESPI CMS so that preflight requests pass the browser's security check. Our experience in development is 4 years; take a look at our work in terms of technical stability and speed: hyperfi.tech, espressolab.com.ua, hudi.com.ua. We will conduct a full audit of the analytics script connections, restore the correct sending of events in Google Tag Manager, and check the functionality of the chat module after correcting the access policies. The cost of fixing this error and checking the analytics will be from $50, and the completion time will be 1–2 working days.

Budget: 18900 UAH Deadline: 1 day

Hello, Maxim!
To resolve the CORS error in the online store on NESPI CMS, it is necessary to analyze the server configuration and set up the CORS headers. This can be done by adding the appropriate headers to the server configuration or using a plugin for NESPI CMS. It may also require changes to the application code for proper CORS functionality.
The exact price and deadlines will be provided after clarifying the details.

Profile: Freelancehunt
Reviews: Freelancehunt

Budget: 2000 UAH Deadline: 1 day

Hello, I have experience with such tasks. I need a repository and access to the server from you. I will be happy to help you!

Budget: 700 UAH Deadline: 1 day

Good day, I will correct this, please provide access to your website. I am waiting in personal.............................................
the exact price will be as soon as there are details.

Budget: 3000 UAH Deadline: 1 day

Good day!
It seems the problem is with the incorrect handling of CORS preflight (OPTIONS) — the required headers (Access-Control-Allow-Origin, etc.) are missing, which is causing the browser to block requests. This is disrupting the chat functionality and event transmission in GTM.

What I will do:
I will check the network + preflight requests
I will find out where exactly CORS is being blocked (backend / third-party service)
I will fix the headers or proxy logic
I will check the event transmission in GTM (dataLayer)

I will do it carefully, without affecting other parts of the site.
I can start immediately. Expand

Budget: 3500 UAH Deadline: 1 day

Hello
Is there access to the code (FTP / Git)?
Access to the server (or at least nginx/apache config)?
Access to Google Tag Manager?
What chat is being used?

Budget: 3000 UAH Deadline: 1 day

Good day!

I have extensive experience working with online stores and custom CMS, including projects with non-standard architecture and complex integration of analytics and third-party services.

Your problem with CORS is a typical situation: the server does not return the correct headers (Access-Control-Allow-Origin and related), which causes requests (including preflight) to be blocked, and as a result, the chat functionality and event transmission to Google Tag Manager break down.

What I will do:
— Find the source of the problem (server / API / proxy / front-end)
— Configure the correct CORS headers
— Check and restore the functionality of the chat module
— Recheck the event transmission to GTM and analytics
— If necessary, optimize the event sending scheme to avoid similar problems in the future

Timeline: 1 day (often resolved in a few hours)
Cost: 80–120 € (depends on the complexity of access and project structure)

I am ready to quickly get involved and close the task without unnecessary delays. Expand

Budget: 700 UAH Deadline: 1 day

Hello, the headers are not being transmitted here; they can be set through PHP code and will correctly send the headers.