On an iPhone, JavaScript should be turned on by default, but if it was disabled at some point, many websites will appear broken in the Safari browser. To enable JavaScript, go into the Settings app on ...

6. Just to be sure that Javascript is enabled, repeat the previous steps to enable Javascript. Check also if there are apps interfering with Java or your browser.

In the coming future, Skelker says that Google won't allow users to sign into accounts if they disabled JavaScript in their browser.