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| Blank Page/Caching Probklems with Opera v9.02 |
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Tue, 17 Oct 2006 17:09:08 -040 |
I'm new to Opera. Downloaded it (windows version) to test it against our web
server to research problems reported by some of our customers related to
seeing "blank pages."
Its repeatable on our system and after 5 days of digging deep into finding
out what the problem is (which BTW, IE/FF works fine with our web pages), I
can only summarize the following:
1) Thinking it is caching related, I turned off MEMORY and DISK under
advanced preferences. Opera still seems to cache, based on seeing the
cached info in the TOOL | ADVANCED | CACHE page.
2) It has a problem with server-side dynamically created pages with the same
URL. Output that is changed based on authenticated requirements. Hence, you
see blank pages when you repeat the same URL. Temporarily adding a unique
URL counter (i.e, &time=xxx) resolves it but we are not going to do that to
our nearly 10 year old framework of product URLs.
/LOGIN - forces a redirection, no problem with opera
/LOGIN?mode=devicetype - problems with OPERA
An example is at http://www.winserver.com. There is the WEB BROWSER device
(url is /LOGIN?MODE=HTML). Login with this method with user: guest, pwd:
guest. Then logout. Click Home and repeat. You will see the blank page.
This is a major problem because many of our customers offer direct URL links
or users bookmark links to private side resources such as:
/domain/client?message.wcn
This will force an authentication. It works the first time, but the second
time, blank page. Try it with the guest account.
Anyway, we exhausted all we can do with this Opera browser. I'm really
impressed with it, but from a quality standpoint, I'm really surprise that
its plagued with this caching/blank page issues.
The only clue I can provide in comparing the GET request for a good display
vs. a blank page request is that with the blank page resulting GET request I
see two extra header lines:
Pragma: no-cache
Cache-Control: no-cache
I'm not sure if all this is related to the fact that it completely ignores
the MEMORY/DISK Cache OFF settings, but it might be all tied together.
---
Technical Support
Santronics Software, Inc.
support web site: http://www.winserver.com (customers only)
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| Re: Blank Page/Caching Probklems with Opera v9.02 |
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Wed, 18 Oct 2006 12:41:24 +080 |
On Wed, 18 Oct 2006 05:09:08 +0800, Hector <nospam@nospam.com> wrote:
> An example is at http://www.winserver.com. There is the WEB BROWSER
> device (url is /LOGIN?MODE=HTML).
That login page is a bit of a mess. Fix that up so at least the
instructions to the browser are sensible, then we'll try again:
There's two <html>s, two <body>s, and two <head>s (one of
which is empty).
Fix those up (and their closing tags), and see if that makes a difference.
I did notice that starting from the blank page:
1. Back button to support page
2. Click "Web Browser" -> non-blank page
3. Back button to support page
4. Click "Web Browser" -> blank page
5. Repeat
i.e. it would alternate between blank and non-blank pages. Weird.
--
Andrew Gregory
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| Re: Blank Page/Caching Probklems with Opera v9.02 |
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Thu, 19 Oct 2006 17:03:17 +020 |
On Tue, 17 Oct 2006 23:09:08 +0200, Hector <nospam@nospam.com> wrote:
> An example is at http://www.winserver.com. There is the WEB BROWSER
> device
> (url is /LOGIN?MODE=HTML). Login with this method with user: guest, pwd:
> guest. Then logout. Click Home and repeat. You will see the blank page.
I managed to reproduce this every time as well. Reloading or selecting the
URL and hitting "Enter" brings up the log-in page again. Very strange
and
I would say that this is a bug in Opera. The fact that the page is tag
soup is completely beside the point -- that doesn't explain why Opera can
sometimes show the page and sometimes not.
Anyone else able to reproduce? Any ideas as to what might be wrong?
--
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