Following the CEP Quick Start, but my Open button isn't responding
Hi, I've been following the steps at Adobe-CEP/Getting-Started-guides
The panel displays correctly in Photoshop, but the Open button is not responding.
Also, I can't load the page to debugging at http://localhost:8088/. It gives me the msg "This site can't be reached."
Any ideas as to what I'm doing wrong?

Here is my file structure at AppData\Roaming\Adobe\CEP\extensions\com.my.test.panel.
CSInterface.js is from the 11.x folder on the repo.

manifest.xml
<?xml version='1.0' encoding='UTF-8'?>
<ExtensionManifest ExtensionBundleId="com.my.test" ExtensionBundleVersion="1.0.0" Version="7.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<ExtensionList>
<Extension Id="com.my.test.panel" Version="1.0.0" />
</ExtensionList>
<ExecutionEnvironment>
<HostList>
<Host Name="PHSP" Version="23" />
<Host Name="PHXS" Version="23" />
</HostList>
<LocaleList>
<Locale Code="All" />
</LocaleList>
<RequiredRuntimeList>
<RequiredRuntime Name="CSXS" Version="7.0" />
</RequiredRuntimeList>
</ExecutionEnvironment>
<DispatchInfoList>
<Extension Id="com.my.test.panel">
<DispatchInfo>
<Resources>
<MainPath>./client/index.html</MainPath>
<ScriptPath>./host/index.jsx</ScriptPath>
<CEFCommandLine />
</Resources>
<Lifecycle>
<AutoVisible>true</AutoVisible>
</Lifecycle>
<UI>
<Type>Panel</Type>
<Menu>My First Panel</Menu>
<Geometry>
<Size>
<Height>250</Height>
<Width>350</Width>
</Size>
</Geometry>
<Icons />
</UI>
</DispatchInfo>
</Extension>
</DispatchInfoList>
</ExtensionManifest>
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Nick's First Panel</title>
</head>
<body>
<h1>Nick's first panel</h1>
<button id="open-button">Open</button>
<script type="text/javascript" src="CSInterface.js"></script>
<script type="text/javascript" src="index.js"></script>
</body>
</html>
index.js
var csInterface = new CSInterface();
var openButton = document.querySelector("#open-button");
openButton.addEventListener("click", openDoc);
function openDoc() {
csInterface.evalScript( 'openDocument()' )
}
index.jsx
function openDocument(){
var fileRef = new File("~/Downloads/myFile.jpg");
var docRef = app.open(fileRef);
}
.debug
<ExtensionList>
<!-- 1 -->
<Extension Id="com.my.test.panel">
<HostList>
<!-- 2 -->
<Host Name="PHXS" Port="8088"/>
<Host Name="PHSP" Port="8088"/>
</HostList>
</Extension>
</ExtensionList>
