CC 2017 - HTML entities in js files being converted when saved

Here is my function:

function escapeHtml(sStr) {
    
    // Dreamweaver CC 2017 is converting these entities. I can't stop it.
    var entityMap = {
        "&": `&`,
        "<": "&lt;",
        ">": "&gt;",
        '"': "&quot;",
        "'": "&#39;",
        "/": "&#x2F;"
    };
    
    return String(sStr).replace(/[&<>"'\/]/g, function (s) {
        return entityMap;
    });
}

After saving:

function escapeHtml(sStr) {
    
    // Dreamweaver CC 2017 is converting these entities. I can't stop it.
    var entityMap = {
        "&": `&`,
        "<": "<",
        ">": ">",
        '"': """,
        "'": "'",
        "/": "/"
    };
    
    return String(sStr).replace(/[&<>"'\/]/g, function (s) {
        return entityMap;
    });
}

This is just a regular .js file. Why is this happening?