I just want to share a piece of information that I discovered about the root cause of the Edit HTML problem that I 'm facing in the new blogger interface. If you do not face this problem, you may skip this article.
Don't know since when, blogger has forced us to use the "New Blogger Interface". At first, it seems pretty cool after you get used to some of the new GUI features but one thing that border me is the "Edit HTML" function under the template. Whenever I go to the template and I have this infinite loading page problem!
I only see this "blogger progress icon" in my entire page! It loads forever...
To workaround with this problem, I just simply switch back to the "Old Blogger Interface" as follow:
It appears solves the problem but wait! What if one day Google doesn't allow me to switch back to the "Old Blogger Interface". Then, I will forever stuck and will not able to access to my blog HTML directly anymore.
if (top.location != self.location) top.location.replace(self.location);
Apparently the "NetworkedBlogs" has a new feature to disable this frame. What you need to do is go to Syndication, choose Your Blog and select "Custom Post". Then, you just select the "Hide NetworkedBlogs Toolbar" to disable the frame. When the frame is disabled, you do not need the javascripot above anymore.
P/S: Hope you have similar problems like mine and this post helps.