blank white screen, only for some users

[crankshaft]

I recently installed PhotoPost Classifieds 2.42, integrated with vBulletin 3.0.11. Overall, my users have responded very positively; we had over 60 ads placed within the first 24 hours .

Some users are reporting that they can see the header, but that the rest of the screen is blank white. My first thought was that this was a browser-specific rendering issue, caused by a hanging table tag. I did notice an extra closing td tag in feature.tmpl. I've edited it out, but the users are still reporting the same problem.

I've searched this forum for "blank", but didn't find what I was looking for. I'm sure I'm missing something obvious.

My install is here: http://www.hotrodders.com/ads. What's the next step?

[Chuck S]

Sounds to me like browser specific maybe way old browser that does not handle css well?

I would be interested where you found an extra tag in feature.tmpl as there is not one that I see. I just ran the program through w3c.org and it is 100% xhtml complaint

http://validator.w3.org/check?uri=ht...nsitional&ss=1

[crankshaft]

Thanks Chuck S. -- I will keep an eye on the blank white issue. Maybe I will pull their user agent information to see what browser is causing the problem.

Perhaps the error is on my end, but I had noticed that, on line 56 of vb3enhanced/feature.tmpl, when ($numfeatures == $rcols), there seems to be an extra closing td tag inserted. I've just reverted my feature.tmpl template, and I can see it on my classifieds home page, around line 1263, where the first row of the "Recent Ads" table closes. I noticed a similar situation on this site: http://www.craftster.org/classifieds/ . On ReefTalk.com, I think it might not be occurring because there aren't enough recent ads. So, ($numfeatures == $rcols) is never true, and the loop with the extra closing td tag is not being executed.

Let me know if I'm doing something wrong, or if you can think of anything that might cause the blank white issue.

Thanks again for the quick reply.

[crankshaft]

Still troubleshooting this...

Can I get confirmation on the closing td tag issue?

[Chuck S]

Yes good call remove in bold

$numfeatures=0;
for ( $x=1; $x < ($count+1); $x++ ) {
if ( $numfeatures == $rcols ) {
echo<<<PPPRINT
</td></tr><tr>
PPPRINT;
$numfeatures = 0;
}
$numfeatures++;

[crankshaft]

Cool, thanks. I'll start capturing user agents to see if I can pinpoint the blank white display issue.

[crankshaft]

One of the users who is getting this problem uploaded the HTML source of the classifieds main page. It's attached to this post. He tried two browsers, same error. Here are his user agents:

Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; Q312461; SV1)
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8) Gecko/20051111 Firefox/1.5


Any idea what's going on?

[Chuck S]

Looks to me like you have some hacks installed with classifieds

Try experimenting with this user by turning off the vb3 integration and seeing if he can view the classifieds page. Maybe one of the vb3 hacks is interfering with something on his browser

[crankshaft]

I have been experimenting with this, still can't figure it out.

The users with the problem are using Norton Internet Security 2006, and they say that the problem goes away when Norton is turned off. Ideas?

I'm unfamiliar with Norton Internet Security. Is it possible that there's a setting they could toggle to alleviate this problem?

[Chuck S]

Well I have never heard of Norton Internet Security causing a site not to load. Blocking cookies surely which is a no-no with a site such as ours that relies on cookies for authentication.

I guess the only advice I can give since I have never seen this scenerio would be the same as when it blocks cookies

Try having these user's set up your site as a friendly site in there settings to that Norton does not block anything from it.

[crankshaft]

This is interesting...

My classifieds are at: http://www.hotrodders.com/ads .

One of my users who had been reporting the problem looked through his Norton logs, and saw that the fact that my classifieds have /ads/ in the url was listed as the reason for blocking.

[crankshaft]

Getting closer here...

This link: http://service1.symantec.com/SUPPORT...ection=1&Src=w shows how to disable the ad blocking rules in Norton, and lists "ads" in the url as a block rule.

[Chuck S]

Yep Norton is blocking it cause you have elected to call your Classifieds Directory ads.

You can remove that rule from the Norton Blocks /ads or add your site as a trusted site.

[crankshaft]

Thanks Chuck -- mystery solved .

I'm glad the error was on my end, rather than something wrong with PhotoPost Classifieds.