Bookmark Jon's post about Firefox Containers

Closes #511.
7 jobs for content/2019-06-07 in 5 minutes and 11 seconds
Status Job ID Name Coverage
  Build
passed #227034306
build_deploy_image

00:01:32

passed #227034304
build_site

00:01:30

passed #227034305
build_test_image

00:02:28

 
  Review
passed #227034307
review_deploy

00:00:58

manual #227034308
allowed to fail manual
review_stop
 
  Test
failed #227041040
test_image

00:01:45

failed #227034309
test_image

00:01:40

 
Name Stage Failure
failed
test_image Test
/usr/local/bundle/gems/html-proofer-3.8.0/lib/html-proofer/runner.rb:167:in `print_failed_tests'
/usr/local/bundle/gems/html-proofer-3.8.0/lib/html-proofer/runner.rb:48:in `run'
/app/Rakefile:81:in `block (2 levels) in <top (required)>'
/usr/local/bundle/gems/rake-12.3.1/exe/rake:27:in `<top (required)>'
/usr/local/bin/bundle:30:in `block in <main>'
/usr/local/bin/bundle:22:in `<main>'
Tasks: TOP => test => test:links
(See full trace by running task with --trace)
ERROR: Job failed: exit code 1