Fixing CodeRunner jQuery injection

CodeRunner is one of my favourite development environments on macOS. I use it for small one-off projects or for testing concepts for integration into larger projects. But in version 4.0.3, jQuery injection in a custom HTML page is broken, giving the error: It’s probably due to some unescaped bit of code in their minified jQuery, but I didn’t have time to work that hard. Instead I reported the error to the developer an fixed it myself.