Pressbooks - Known Issue - Users getting 502 and 504 errors in Pressbooks (UW-Madison)

Pressbooks is an innovative, open-source tool and is still emerging as an enterprise-level platform with predictable performance. Please take this into account when deciding to use Pressbooks for the creation of course and assignment materials. Learn@UW-Madison continues to track and document known issues with Pressbooks.

This document describes the 502 and 504 Pressbooks error and steps Learn@UW is taking to correct it.

Some users may receive 502 and 504 errors in their web browser when attempting to view or edit Pressbooks content.


This affects users trying to view or edit Pressbooks content on UW-Madison's instance of Pressbooks.


As of 1/9/2019, this issue is still present. UW-Madison technologists worked with Pressbooks to identify the performance issue on 10/2/18. To see the status of Pressbooks servers and ensure a server outage is not causing your 502 or 504 error, check


As of 1/9/2019, the workaround is refresh your browser and try to access the Pressbooks content again.

Keywords:Pressbooks, 502, 504, error, issue, problem, glitch, problem, acar, known, issues   Doc ID:86021
Owner:Learn@UW Madison .Group:Learn@UW Madison
Created:2018-09-25 13:28 CSTUpdated:2019-01-09 12:38 CST
Sites:DoIT Help Desk, Learn@UW Madison
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