There is a problem with the "newwidth" variable on line 181 of moodle/mod/scorm/module.js file. In every re-size case it sends you to the "else" statement which puts the size of the module at 600px. I dont know why this variable is incorrect, but I have a workaround.
Change line 185 of that same file to match line 182 of that file. This will always have the re-size of the window dynamically performed.
SO CHANGE THIS LINE...