An in-range update of webpack-dev-server is breaking the build 🚨


## The devDependency [webpack-dev-server](https://github.com/webpack/webpack-dev-server) was updated from `3.7.2` to `3.8.0`.

🚨 [View failing branch](https://github.com/LeetCode-OpenSource/rxjs-hooks/compare/master...LeetCode-OpenSource:greenkeeper%2Fwebpack-dev-server-3.8.0).

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




webpack-dev-server is a devDependency of this project. It **might not break your production code or affect downstream projects**, but probably breaks your build or test tools, which may **prevent deploying or publishing**.



<details>
<summary>Status Details</summary>

- ❌ **ci/circleci: build:** Your CircleCI tests were canceled ([Details](https://circleci.com/gh/LeetCode-OpenSource/rxjs-hooks/823?utm_campaign=vcs-integration-link&utm_medium=referral&utm_source=github-build-link)).
</details>


---

<details>
<summary>Release Notes for v3.8.0</summary>

<h2><a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/compare/v3.7.2...v3.8.0">3.8.0</a> (2019-08-09)</h2>
<h3>Bug Fixes</h3>
<ul>
<li><strong>server:</strong> fix setupExitSignals usage (<a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/issues/2181" data-hovercard-type="pull_request" data-hovercard-url="/webpack/webpack-dev-server/pull/2181/hovercard">#2181</a>) (<a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/bbe410e">bbe410e</a>)</li>
<li><strong>server:</strong> set port before instantiating server (<a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/issues/2143" data-hovercard-type="pull_request" data-hovercard-url="/webpack/webpack-dev-server/pull/2143/hovercard">#2143</a>) (<a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/cfbf229">cfbf229</a>)</li>
<li>check for name of HotModuleReplacementPlugin to avoid RangeError (<a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/issues/2146" data-hovercard-type="pull_request" data-hovercard-url="/webpack/webpack-dev-server/pull/2146/hovercard">#2146</a>) (<a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/4579775">4579775</a>)</li>
<li><strong>server:</strong> check for external urls in array (<a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/issues/1980" data-hovercard-type="pull_request" data-hovercard-url="/webpack/webpack-dev-server/pull/1980/hovercard">#1980</a>) (<a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/fa78347">fa78347</a>)</li>
<li><strong>server:</strong> fix header check for socket server (<a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/issues/2077" data-hovercard-type="pull_request" data-hovercard-url="/webpack/webpack-dev-server/pull/2077/hovercard">#2077</a>) (<a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/7f51859">7f51859</a>)</li>
<li><strong>server:</strong> stricter headers security check (<a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/issues/2092" data-hovercard-type="pull_request" data-hovercard-url="/webpack/webpack-dev-server/pull/2092/hovercard">#2092</a>) (<a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/078ddca">078ddca</a>)</li>
</ul>
<h3>Features</h3>
<ul>
<li><strong>server:</strong> add transportMode (<a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/issues/2116" data-hovercard-type="pull_request" data-hovercard-url="/webpack/webpack-dev-server/pull/2116/hovercard">#2116</a>) (<a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/b5b9cb4">b5b9cb4</a>)</li>
<li><strong>server/client:</strong> made progress option available to API (<a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/issues/1961" data-hovercard-type="pull_request" data-hovercard-url="/webpack/webpack-dev-server/pull/1961/hovercard">#1961</a>) (<a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/56274e4">56274e4</a>)</li>
</ul>
<h3>Potential Breaking Changes</h3>
<p>We have migrated <code>serverMode</code> and <code>clientMode</code> to <code>transportMode</code> as an experimental option. If you want to use this feature, you have to change your settings.</p>
<p>Related PR: <a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="466670604" data-permission-text="Issue title is private" data-url="https://github.com/webpack/webpack-dev-server/issues/2116" data-hovercard-type="pull_request" data-hovercard-url="/webpack/webpack-dev-server/pull/2116/hovercard" href="https://urls.greenkeeper.io/webpack/webpack-dev-server/pull/2116">#2116</a></p>
</details>

<details>
<summary>Commits</summary>
<p>The new version differs by 65 commits.</p>
<ul>
<li><a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/84cb4817a3fb9d8d98ac84390964cd56d533a3f5"><code>84cb481</code></a> <code>chore(release): 3.8.0</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/b5b9cb47fe6d930e97a96fc49d80d3df9d3cae4a"><code>b5b9cb4</code></a> <code>feat(server): add transportMode (#2116)</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/460f15a1a4d3356c32317b4157b766984eed9d5b"><code>460f15a</code></a> <code>test(e2e): More e2e test improvements (#2163)</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/bc7005e4cd34746ffa3373c9be08132575af9b52"><code>bc7005e</code></a> <code>chore(deps): update dependency husky to ^3.0.3 (master) (#2182)</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/bbe410e6f257ae45e65ca97c708118c8d7ec01ce"><code>bbe410e</code></a> <code>fix(server): fix setupExitSignals usage (#2181)</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/21e76462473018c9c6454541e2881b085567f060"><code>21e7646</code></a> <code>chore(deps): update dependency style-loader to v1 (#2179)</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/a28800dbe3b490360fd41c41802483c14e7d01db"><code>a28800d</code></a> <code>chore(deps): update webpack@4.39.1 (#2176)</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/68a1f2937ab483dfbcad189276f33dc19ac95886"><code>68a1f29</code></a> <code>chore(deps): update webpack to 4.39.0 (#2171)</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/c2da5322b078dbe9c3f6580ca2f301ba3e282452"><code>c2da532</code></a> <code>chore(deps): update dependency standard-version to v7 (#2160)</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/18edd188fff275f2f684257caab533d8fc25d760"><code>18edd18</code></a> <code>refactor: simplify (#2120)</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/cfbf229329a1474bce1f68bcef67125d2a5c9c8c"><code>cfbf229</code></a> <code>fix(server): set port before instantiating server (#2143)</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/f80e2ae101e25985f0d7e3e9af36c307bfc163d2"><code>f80e2ae</code></a> <code>chore(babel): use api.cache (#2157)</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/0de4ebad907e46d1e1c736344f225c7f43bffc04"><code>0de4eba</code></a> <code>chore(deps): update all patch dependencies (#2159)</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/1f9f9dca5d119e2c639056ba5e06b9f861f9452c"><code>1f9f9dc</code></a> <code>test(utils): increase coverage (#2156)</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/commit/9c171d16e6cbe337bbb0bfe4d84c539c2b668215"><code>9c171d1</code></a> <code>chore(deps): update all patch dependencies (master) (patch) (#2151)</code></li>
</ul>
<p>There are 65 commits in total.</p>
<p>See the <a href="https://urls.greenkeeper.io/webpack/webpack-dev-server/compare/26211fc87785052c3707f0a911fed0acde2c54ec...84cb4817a3fb9d8d98ac84390964cd56d533a3f5">full diff</a></p>
</details>


<details>
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</details>

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Uh oh!

An in-range update of webpack-dev-server is breaking the build 🚨 #72

The devDependency webpack-dev-server was updated from `3.7.2` to `3.8.0`.

3.8.0 (2019-08-09)

Bug Fixes

Features

Potential Breaking Changes

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An in-range update of webpack-dev-server is breaking the build 🚨 #72

Description

The devDependency webpack-dev-server was updated from 3.7.2 to 3.8.0.

3.8.0 (2019-08-09)

Bug Fixes

Features

Potential Breaking Changes

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions

The devDependency webpack-dev-server was updated from `3.7.2` to `3.8.0`.