Minify Selection cause an error (incorrect JSON format result)

[bluedasher13]

In a JSON file, if I run the command Minify: Selection:

• before minified:

{
    "autoload": {
        "psr-4": {
            "App\\something": "app\\something"
        }
    }
}

• after minified:

{"autoload":{"psr-4":{"App\something":"app\something"}}}

• expected:

{"autoload":{"psr-4":{"App\\something":"app\\something"}}}

It will cause an error after minified: Invalid escape character in string.

Because the double backslashes \\ has been stripped.

If this extension doesn't support JSON minifying, The Minify: Selection command should be disabled in the JSON editors.