CLC-4080 - Textbooks: bookstore "purchase" pages show results but often also "No information was found" message

https://jira.ets.berkeley.edu/jira/browse/CLC-4080
Merge pull request #2828 from christianv/CLC-4080

CLC-4080 - Textbooks: bookstore "purchase" pages show results but often also "No information was found" message