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Accessing the Projects Tab Fails with "Unable to load data" When P6 Web Is Accessed from an External Network (over the Internet) (Doc ID 2852248.1)

Last updated on NOVEMBER 14, 2024

Applies to:

Primavera P6 Enterprise Project Portfolio Management - Version 21.12 and later
Information in this document applies to any platform.

Symptoms

When attempting to access the Projects tab in P6 Web, after loading for a few seconds the following error occurs.

Unable to load data. An unknown error has occurred.

 

In the P6WebAccess.html file:

<P6 Web> <ERROR> <XSSFilter> </rest/projects/gridData/load (User Id: 4146 DB Id: 1)> <Detected potential cross-site request forgery (CSRF) attack for the page '/p6/rest/projects/gridData/load. Request will be IGNORED! . Referer was null>

Note:ANY of these may be shown in the "potential cross-site request forgery" message:

        /p6/rest/settings/application
       /p6/rest/projects/setLastProjectId
      /p6/rest/projects/gridData/load
     /p6/p6/rest/users/save

 

The following entry is displayed in the log file for a HAR trace:

IP 403 — — [HTML][ERROR][CACHE ??] 324 ms

POST https://p6_domain_name.com/p6/rest/projects/gridData/load

Full response:  403 Forbidden

Changes

This issue occurs while connecting to P6 Web thru NGINX (web server / reverse proxy / load balancer / mail proxy / HTTP cache software).

Cause

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