An in-range update of xmldom is breaking the build 🚨

## The dependency [xmldom](https://github.com/jindw/xmldom) was updated from `0.1.27` to `0.1.29`.

🚨 [View failing branch](https://github.com/aethant/merino/compare/master...aethant:greenkeeper%2Fxmldom-0.1.29).

This version is **covered** by your **current version range** and after updating it in your project **the build failed**.

xmldom is a direct dependency of this project, and **it is very likely causing it to break**. If other packages depend on yours, this update is probably also breaking those in turn.

Status Details

- ❌ **continuous-integration/travis-ci/push:** The Travis CI build failed ([Details](https://travis-ci.org/aethant/merino/builds/627462669?utm_source=github_status&utm_medium=notification)).

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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).

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Your [Greenkeeper](https://greenkeeper.io) Bot :palm_tree:

Start with the failing Travis CI build linked in the issue and compare the xmldom 0.1.27-to-0.1.29 update in the dependency manifest. Confirm the failure and define done as a passing build with the dependency change handled.

Rédigé par le modèle d'indexation à partir du texte de l'issue.