Kito D. Mann's Blog

Firefox Interrupted Part 2

So, I've been happily using Opera for a while now. I have applied a cool skin, imported my Firefox bookmarks, created and saved sessions (Opera has session-saving of tabs built-in), and so on.

There are, of course, a few caveats:

• I'm not too fond of the way Opera caches things. For normal browsing this is fine, but it's annoying for web development. For now, I've actually turned off caching.
• It's not 100% compatible with all of the sites out there. Using it reminds me of using Netscape a few years ago. It works great 99% of the time, but it crashes when I log into my Google AdSense account, and it "Could not connect to remote server" when I tried to log into the JavaOne content builder site.

  What's funny is that since I'm not used to having these problems (except on the Microsoft site, of course), it took me a minute to realize that the problem was Opera. So, to make sure everything is kosher, I use Firefox as my reference browser (back in the day, I used to use IE as my reference browser).

These issues aren't enough to make me switch back to Firefox, though. I like to have control of my computer's resources.

Comments

• I tried to convince Opera developers that their "total caching" approach is a little extreme, but they think that they got it right: "Note that cache expiration is not checked when going back and forwards in the window history. It is only checked when you click a link. See RFC 2616, section 13.13."

  I tried different cache control headers, but seems that there is nothing to force Opera to reload a page while navigating page history. This sucks because many my applications render different view depending on server-side state. With MSIE or Mozilla clicking Back displays updated view, with Opera I get stale view that does not correspond to server state anymore.

  To add insult to injury, Opera meticulously records all locations, even if these locations are exactly the same. So if you navigated to the same page five times, you get five entries in the page history and you need to click Back five times to bail out. Very frustrating. On contrary, MSIE and Mozilla discard locations if they are the exactly same (that means, that request parameters should be the same too). This allows creating web islands that look like a single-page Ajax app, but in reality are implemented with good old Redirect-after-Post pattern.

  So, I have reasons to hate Opera. I did. But then I thought that those who use Opera like it specifically for its "total caching". It is their choice. So I won't be blaming them. If they like to have same page entries in the page history, this is their problem. I just need to ensure that when they try to submit a stale page my application won't crash.

  Posted by: michael_jouravlev on March 13, 2006 at 07:07 PM

• So, I have reasons to hate Opera. I did. But then I thought that those who use Opera like it specifically for its "total caching". It is their choice. So I won't be blaming them. If they like to have same page entries in the page history, this is their problem. I just need to ensure that when they try to submit a stale page my application won't crash.

  
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  Posted by: keriolder on March 04, 2007 at 02:54 PM

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