While debugging a strange problem with a web application, I wanted to turn of JavaScript for one single tab in Chrome. As it turns out, you can do that in the developer tools without disabling JavaScript for the whole browser.
Open the developer tools by hitting F12 and then click on the topmost gear icon (the one you can open with F1 and not the other ones):
There are a lot of settings you can influence in this dialog. Scroll nearly to the bottom to get to the Debugger. Here you can activate “Disable JavaScript” to turn JavaScript off:
Apart from the multiple gear icons and the logical quirk of activating the option to deactivate JavaScript, it is an easy way to tun off JavaScript for just one tab.
I hope this helps you with debugging your application should this need arise.