use const variable and prevent default in shortcuts

6 jobs for 517-students-url-with-copy in 4 minutes and 25 seconds (queued for 1 second)
latest
Status Name Job ID Coverage
  Build Env
manual build-image #146387
allowed to fail manual
 
  Build
passed build #146388

00:01:59

 
  Test
passed lint_js #146390

00:00:35

passed lint_py #146391

00:00:24

passed test_js #146389

00:00:37

passed test_py #146392

00:02:24

67.0%