Update dependency handlebars to v4.3.3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
handlebars (source)	dependencies	minor	4.1.2 -> 4.3.3

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Release Notes

wycats/handlebars.js

v4.3.3

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v4.3.2

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v4.3.1

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v4.3.0

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Fixes:

• Security: Disallow calling "helperMissing" and "blockHelperMissing" directly - 2078c72
• Disallow calling "helperMissing" and "blockHelperMissing" directly - 2078c72

Features:

• Add new runtime option allowCallsToHelperMissing to allow calling blockHelperMissing and helperMissing.

Breaking changes:

Compatibility notes:

• Compiler revision increased - 06b7224

  • This means that template compiled with versions prior to 4.3.0 will not work with runtimes >= 4.3.0
    The increase was done because the "helperMissing" and "blockHelperMissing" are now moved from the helpers
    to the internal "container.hooks" object, so old templates will not be able to call them anymore. We suggest
    that you always recompile your templates with the latest compiler in your build pipelines.

• Disallow calling "helperMissing" and "blockHelperMissing" directly - 2078c72

  • Calling "helperMissing" and "blockHelperMissing" directly from a template (like in {{blockHelperMissing}} was
    never intended and was part of the exploits that have been revealed early in 2019
    (see #​1495). It is also part of a new exploit that
    is not captured by the earlier fix. In order to harden Handlebars against such exploits, calling thos helpers
    is now not possible anymore. Overriding those helpers is still possible.
  • If you really need this behavior, you can set the runtime option allowCallsToHelperMissing to true and the
    calls will again be possible

Both bullet points imly that Handlebars is not 100% percent compatible to 4.2.0, despite the minor version bump.

We consider it more important to resolve a major security issue than to maintain 100% compatibility.

Commits

v4.2.1

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Bugfixes:

• The "browser" property in the package.json has been updated to use the common-js builds instead of the minified UMD - c55a7be, #​1553

Compatibility notes:

• No compatibility issues should arise

Commits

v4.2.0

Compare Source

Chore/Test:

• Use custom grunt-saucelab with current sauce-connect proxy - f119497
• Add framework for various integration tests - f9cce4d
• Add integration test for webpack - a57b682

Bugfixes:

• #​1544 - Typescript types: knownHelpers doesnt allow for custom helpers (@​NickCis)
• #​1534 - Add typings for "Handlebars.VM.resolvePartial (@​AndrewLeedham)

Features:

• #​1540 - added "browser"-property to package.json, resolves #​1102 (@​ouijan)

Compatibility notes:

• The new "browser"-property should not break anything, but you can never be sure. The integration test for webpack
  shows that it works, but if it doesn't please open an issue.

Commits

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[coveralls]

Coverage remained the same at 16.908% when pulling 4b0b08d on renovate/handlebars-4.x into 97cc985 on master.