Update helmet to the latest version 🚀

[greenkeeper[bot]]

The dependency helmet was updated from 3.15.0 to 3.15.1.

This version is not covered by your current version range.

If you don’t accept this pull request, your project will work just like it did before. However, you might be missing out on a bunch of new features, fixes and/or performance improvements from the dependency update.

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Find out more about this release.

FAQ and help

There is a collection of [frequently asked questions](https://greenkeeper.io/faq.html). If those don’t help, you can always [ask the humans behind Greenkeeper](https://github.com/greenkeeperio/greenkeeper/issues/new).

---

Your Greenkeeper bot :palm_tree:

[greenkeeper[bot]]

• The dependency helmet was updated from 3.15.0 to 3.16.0.

Update to this version instead 🚀

Commits

The new version differs by 18 commits.

• 123e93c 3.16.0
• e9c6eab Update changelog for 3.16.0 release
• 1cff218 Update ienoopen to v1.1.0
• c8578fe Minor: use xssFilter instead of noCache in readme example
• 09c90d2 Update changelog with a few more changes
• 94e92d0 Minor: reference the "drop support for Node <4" commit in the changelog
• 1dab41f Fix link to CHANGELOG.md from HISTORY.md
• a49cec3 Drop support for Node <4
• 9f13f08 Add email to bugs field in package.json
• ce70edc Minor: add more specificity to .npmignore
• 3a37f1f Update Adam Baldwin's contact information
• 1be1cbc Update hsts to 2.2.0
• 354e80e Update devDependencies to latest versions
• b7f7359 Note that the changelog is now in Keep A Changelog format
• b381760 Update changelog to match https://keepachangelog.com/ standard

There are 18 commits in total.

See the full diff

[greenkeeper[bot]]

• The dependency helmet was updated from 3.15.0 to 3.17.0.

Update to this version instead 🚀

Commits

The new version differs by 4 commits.

• 87f8d15 3.17.0
• d13893c Update devDependencies to latest versions
• ea6c415 Update referrer-policy to 1.2.0
• f7a531a Whitelist published files with files

See the full diff

[greenkeeper[bot]]

• The dependency helmet was updated from 3.15.0 to 3.18.0.

Update to this version instead 🚀

[greenkeeper[bot]]

• The dependency helmet was updated from 3.15.0 to 3.19.0.

Update to this version instead 🚀

[greenkeeper[bot]]

• The dependency helmet was updated from 3.15.0 to 3.20.0.

Update to this version instead 🚀

[greenkeeper[bot]]

• The dependency helmet was updated from 3.15.0 to 3.20.1.

Update to this version instead 🚀

[greenkeeper[bot]]

• The dependency helmet was updated from 3.15.0 to 3.21.0.

Update to this version instead 🚀

[greenkeeper[bot]]

• The dependency helmet was updated from 3.15.0 to 3.21.1.

Update to this version instead 🚀

[greenkeeper[bot]]

• The dependency helmet was updated from 3.15.0 to 3.21.2.

Update to this version instead 🚀

[greenkeeper[bot]]

• The dependency helmet was updated from 3.15.0 to 3.21.3.

Update to this version instead 🚀

[greenkeeper[bot]]

• The dependency helmet was updated from 3.15.0 to 3.22.0.

Update to this version instead 🚀