Wk2 A2 Merge into Model Global Variable error

It’s a fine idea to submit to the grader just to see what it says. You can submit as many times as you like and the system will remember your best score on each section, so there is never any reason to avoid “submit”. But please realize that is just a piece of software. Doing that does not expose your code to any human beings. Your browser should not matter. If you want to start again from a clean slate, there is a topic about that on the FAQ Thread.