bad Javascript: "Uncaught TypeError: Cannot read property 'innerHTML' of null"

[The-Alchemist]

Offending Javascript

var existingContent = document.getElementById("test-system-slim:fitnesse.slim.SlimService").innerHTML;

I actually get this four times in one page.

Specs

• $ java -version java version "1.8.0_121" Java(TM) SE Runtime Environment (build 1.8.0_121-b13) Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)
  • Fitnesse 20160618
  • Chrome 58.0.3029.110 (64-bit)

Unfortunately, it's part of a much larger project and I can't post it. :( I'm just wondering if anyone has seen this.

[amolenaar]

This happens when you do a suite run, right? It's part of the code that updates the top part of the page.

[The-Alchemist]

@amolenaar : Yup, you got it! I'm guessing you've seen it already? Any tips? I don't mind submitting a PR if someone points me in the right direction.

[amolenaar]

It would be nice to modernize the Javascript code on the suite page. I suppose SuiteHtmlFormatter.java is a good starting point.