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After OIC Gen3 Upgrade "blocked by CORS policy: Request header field pcs_mode is not allowed" Comes Up. (Doc ID 3046652.1)

Last updated on SEPTEMBER 10, 2024

Applies to:

Visual Builder Studio - Version 24.10.0 and later
Information in this document applies to any platform.

Symptoms

After OIC(Oracle Integration Cloud) Gen3 upgrade "blocked by CORS policy: Request header field pcs_mode is not allowed" comes up.

The error trigger is an attempt to invoke the Rest endpoint prepared in OIC.

You should see the following error at Browser Developer tool > Console :

Access to fetch at '<REST_API>' from origin '<VBCS_DOMAIN>' has been blocked by CORS policy: Request header field pcs_mode is not allowed by Access-Control-Allow-Headers in preflight response.

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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