You cannot open a survey on the Portal.
When you click on the survey title to open a survey on Portal, it shows a blank page.
Steps to reproduce
- Impersonate an affected user
- Open the Portal and check the 'My Surveys' section in the header.
- It shows a survey, but when openingit, it's blank.
The SPSurveyAPI script include is customized.
Reverting to the OOB script resolves the issue.