Google's John Mueller said in a Google hangout the other day that Google's team, likely the Search Console team, is working on improving the Fetch and Render tool to add a way to see the rendered JavaScript code in the tool.
Right now you can see the rendered site but not the actual code.
John was asked about this at the 14:37 mark into the video:
You can use fetch and render and you can see it there?
She was asking about the JavaScript portion.
John Mueller responded:
You can see what it looks like but you can't see the code. So they are working on something to make it possible to see the rendered code there.
Here is the video embed at the start time:
I guess this is what John meant back in March when we said more was coming to this tool?
We know, sometimes Google has a hard time with JavaScript here.
Forum discussion at YouTube.
