Instead of Primo FE, blank page with {"status":"ok"} appears

• Article Type: General
• Product: Primo
• Product Version: 4.5

Problem Symptoms:
* Recently installed SP4.5, SP4.6, or SP4.7
* The second time the same Primo FE URL is accessed, it works fine
* Primo redirect to PDS for Single Sign-On (SSO) check succeeds
* SSO check succeeds
* Redirect back to Primo lands on blank page with {"status":"ok"} in upper left corner

Cause:
* SP4.5 introduced a new mechanism for SSO that uses an iframe
* "top.location" is used in PDS scripts, which tells an iframe to REPLACE the parent window with the results of the iframe, which is {"status":"ok"} in this case, instead of within its iframe
* Primo Development is aware of this defect

Resolution:
Workaround for SP4.5.x, SP4.6, SP4.7:
(PDS server access is *required* for this workaround)
1. On PDS server, edit PDS script:
* If shibboleth is used, edit pdsroot/html_form/global/redirect-remote-shib
* If other remote sso is used, edit pdsroot/html_form/global/sso-remote-1
2. Change:
top.location = url;
to:
window.location = url;
3. Save the file
*NOTE: these files may be overwritten by a Service Pack or Hotfix