popup.html

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Request Pipeline</title>
    <link href="./popup.css" rel="stylesheet">
</head>
<body class="mx">
<div class="my">
    <label class="localize" data-localize="selectTabs">Select Tabs:
        <select name="tabs" id="tabs">
            <option value="-1">select</option>
        </select>
    </label>
</div>

<div class="my">
    <label class="localize" data-localize="server">
        Server Address:
        <input type="text" id="server" value="http://127.0.0.1:6789">
    </label>
</div>


<script src="./popup.js" type="module"></script>

</body>
</html>