display user agent in /browsers page
display user agent in /browsers page

playi/pxt,Microsoft/pxt,switch-education/pxt,playi/pxt,switchinnovations/pxt,playi/pxt,switch-education/pxt,switchinnovations/pxt,switch-education/pxt,playi/pxt,switchinnovations/pxt,switch-education/pxt,Microsoft/pxt,switch-education/pxt,Microsoft/pxt,Microsoft/pxt,Microsoft/pxt,switchinnovations/pxt