clear string (cached url) in correct place
clear string (cached url) in correct place

Change-Id: Ib7ff8200b768ef3a2a50c42f0ebf165185cfeeba

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core