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build(deps): bump handlebars from 4.1.2 to 4.5.3

Warren Gifford requested to merge dependabot/npm_and_yarn/handlebars-4.5.3 into master

Created by: dependabot[bot]

Bumps handlebars from 4.1.2 to 4.5.3.

Changelog

Sourced from handlebars's changelog.

v4.5.3 - November 18th, 2019

Bugfixes:

  • fix: add "no-prototype-builtins" eslint-rule and fix all occurences - f7f05d7
  • fix: add more properties required to be enumerable - 1988878

Chores / Build:

  • fix: use !== 0 instead of != 0 - c02b05f
  • add chai and dirty-chai and sinon, for cleaner test-assertions and spies, deprecate old assertion-methods - 93e284e, 886ba86, 0817dad, 93516a0

Security:

  • The properties __proto__, __defineGetter__, __defineSetter__ and __lookupGetter__ have been added to the list of "properties that must be enumerable". If a property by that name is found and not enumerable on its parent, it will silently evaluate to undefined. This is done in both the compiled template and the "lookup"-helper. This will prevent new Remote-Code-Execution exploits that have been published recently.

Compatibility notes:

  • Due to the security-fixes. The semantics of the templates using __proto__, __defineGetter__, __defineSetter__ and __lookupGetter__ in the respect that those expression now return undefined rather than their actual value from the proto.
  • The semantics have not changed in cases where the properties are enumerable, as in:
{
  __proto__: 'some string'
}
  • The change may be breaking in that respect, but we still only increase the patch-version, because the incompatible use-cases are not intended, undocumented and far less important than fixing Remote-Code-Execution exploits on existing systems.

Commits

v4.5.2 - November 13th, 2019

Bugfixes

  • fix: use String(field) in lookup when checking for "constructor" - d541378
  • test: add fluent API for testing Handlebars - c2ac79c

Compatibility notes:

  • no incompatibility are to be expected
... (truncated)
Commits
  • c819c8b v4.5.3
  • 827c9d0 Update release notes
  • f7f05d7 fix: add "no-prototype-builtins" eslint-rule and fix all occurences
  • 1988878 fix: add more properties required to be enumerable
  • 886ba86 test/chore: add chai/expect and sinon to "runtime"-environment
  • 0817dad test: add sinon as global variable to eslint in the specs
  • 93516a0 test: add sinon.js for spies, deprecate current assertions
  • 93e284e chore: add chai and dirty-chai for better test assertions
  • c02b05f fix: use !== 0 instead of != 0
  • 8de121d v4.5.2
  • Additional commits viewable in compare view

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