403 Access Denied Error

Hello,

I'm using the code below, enter ../ it's redirected to "Access Denied",  any idea why? I don't see any error logged in the Tomcat log.

a!localVariables(
  local!searchKeyword,
  a!columnsLayout(
    columns: {
      a!columnLayout(
        contents: {
          a!textField(
            label: "Search By Keyword",
            value: local!searchKeyword,
            saveInto: {
              local!searchKeyword,
              a!save(
                local!searchKeyword,
                trim(local!searchKeyword)
              )
            },
            refreshAfter: "KEYPRESS"
          )
        }
      )
    }
  )
)