1. Proposed title of this feature request

Ability of pipelines eventlistener to handle preflight options request sent for CORS verification.

2. What is the nature and description of the request?

While triggering pipelines using eventlistener, CORS feature should work while sending preflight options from browser.

3. Why does the customer need this? (List the business requirements here)
When customer is building an application, and this capability will be useful for seamless and quickest way to launch it, currently as this isn't available checking for workarounds.

4. List any affected packages or components.