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Level 1

44 points

Lion web browsing extremely slow for one site.

I am a moderator on the citizen science “Moon Zoo” forum and one of the tools we use to examine images of the lunar surface sent back by the Lunar Reconnaissance Orbiter is the ACT-REACT QuickMap Tool - found at http://target.lroc.asu.edu/da/qmap.html?mv=eqc&mcx=0&mcy=0&mz=1

When people find an image they want us to look at they often post an ACT-REACT link. These links are the problem. Under the Mac OS X 10.7.4 release, using the latest Safari (5.1.7) or Chrome (18.0) or Firefox (12.0) browsers, the images take ages (from 9 to 17 minutes) to load. Sometimes they don’t load at all.

The same ACT-REACT link will load in under a minute when using Mac OS X 10.6 (Snow Leopard) on the same machine - I have a second hard-drive containing Snow Leopard. None of the users of the forum using PC software have reported problems so looks like it's restricted to Lion.

Other web sites work fine, it is only this one site that I have problems with and only when using Lion.

The following ACT-REACT link is the one I used in testing: http://target.lroc.asu.edu/da/qmap.html?mv=eqc&mcx=3910780.30841&mcy=-615107.273 23&mz=11

When using Safari 5.1.7 to access the above link I get the following messages in the Error Console:

“Failed to load resource: The request timed out. fprovweb.exe” (this error displayed over 300 times)

Full image took 17 minutes to load.

Google Chrome 18.0 browser took 9 minutes to load the image.

Firefox 12.0 browser never finished loading.

This problem occurs on my Mac Pro and MacBook systems.

I have reported this on the Apple Feedback site.

Posted on May 14, 2012 4:16 AM

34 replies

Geoff Roynon Author

Level 1

44 points

May 14, 2012 10:30 AM in response to softwater

O.K. - I booted into recovery mode, turned off WiFi and same problem. Same thing with WiFi on.

I think I may to to do an erase and install of Lion and see if that fixes it.

Geoff Roynon Author

Level 1

44 points

May 14, 2012 10:32 AM in response to softwater

I forgot to add that I did try

sudo killall -HUP mDNSResponder

and it didn't fix the problem.

May 14, 2012 10:41 AM in response to Geoff Roynon

Java issue, perhaps?

Try DISabling (unchecking) "Enable applet plugin and Web Start Applications" in Java Preferences in your utility folder.

Rob

Geoff Roynon Author

Level 1

44 points

May 15, 2012 8:05 AM in response to Geoff Roynon

Last night I erased the hard-drive on my Macbook, reinstalled Lion then restored my stuff from my Time Capsule.

I tested this morning and the first ACT-REACT link I tried loaded in under a minute! Unfortunately every link after that is taking 9-12 minutes so the problem still exists.

I can't figure out what's different on my setup on my Macbook and MacPro to everyone else's!

I'll erase and install again but test before restoring my files in case it's some software I use that no-one else has.

May 15, 2012 10:11 AM in response to Geoff Roynon

That site requires Java. I'd still suggest you investigate your Java settings. Worked for some other quickmap users, check moonzoo.org.

And if you're restoring you are simply putting back your system to the way it was, so no changes will have been made.

Geoff Roynon Author

Level 1

44 points

May 15, 2012 10:24 AM in response to Rob Gendreau

I've just checked my Java Preferences and I'm running "Jave SE 6" version: 1.6.0_31-b04-415

The "Enable applet plug-in and Web Start applications" box is not checked.

May 15, 2012 10:44 AM in response to Geoff Roynon

That's the current version, I believe.

The only other thing I could suggest is to see if Java is using your system preferences or a proxy. And maybe disable the java cache. It just seems the javascript is doing something in your case that isn't working, and I don't know enough about java to say how to diagnose it further. I had a similar problem where a javascript kept trying to run an .exe while accessing a security camera site.

Good luck though.

Geoff Roynon Author

Level 1

44 points

May 15, 2012 10:50 AM in response to Rob Gendreau

Thanks for the response - it does seem to be connected to Java or Javascript.

I'm currently reinstalling Lion on my laptop and will run Safari and do some testing before restoring my files from backup. Will report back if successful.

May 15, 2012 11:02 AM in response to Geoff Roynon

Just tried it too: Immediate opening (Safari 5.1.7, OSX 10.7.4). ADSL line (tests at @ 12Mb downstream), MacPro on ethernet to TP-Link switch (router also on gigabit).

Very odd...

Geoff Roynon Author

Level 1

44 points

May 15, 2012 11:45 AM in response to ttreen1950

Results of my testing:

I wiped the hard drive on my Macbook and reinstalled Lion 10.7.3.

I did NOT restore any of my files/software.

I ran Safari 5.1.3 and visited two ACT-REACT links:

http://target.lroc.asu.edu/da/qmap.html?mv=eqc&mcx=4490232.06438&mcy=-902028.273 23&mz=10

http://target.lroc.asu.edu/da/qmap.html?mv=eqc&mcx=4431849.35032&mcy=-910802.600 71&mz=13

The first link loaded in under a minute, the second is still attempting to load 10 minutes later.

It appears that everything works fine on the first visit to the site but fails on subsequent visits.

I don't think it's a Java problem as I opened Java Preferences and it said that I needed to install Java Runtime so it appears I don't have Java installed.

Could it be a Javascript problem?

May 15, 2012 12:04 PM in response to Geoff Roynon

Hi Geoff,

I got a similar result - but the one thing I DID check, was my gigabit TP-Link switch. When Safari "stalled" when opening the second link - after 10 secs or so, the "blurred" picture was there - the activity light for the line to my MacPro (normally flickering like mad) was solidly on:- no line activity at all. This doesn't happen with other sites, so perhaps it is something to do with the site's authoring/set-up.

I think it would need someone with greater javascript knowledge than mine to visit the site, view source, and come back with a reasoned answer.

Good luck.

Geoff Roynon Author

Level 1

44 points

May 15, 2012 12:11 PM in response to ttreen1950

Thanks for the response - I'm glad it's not only me having problems with this site.

I will draft a bug report and send it to them (the ACT-REACT site) and see if I can get it resolved that way.

As another data point - I downloaded the latest Firefox 12.0 and used it to visit both links (both failed to load) but on the bottom of the screen it says: "Connecting to qm-proxy12.lroc.asu.edu..."

Don't know if that has any relevance to the problem.

May 15, 2012 12:30 PM in response to Geoff Roynon

Hi Geoff,

I tried it with Safari, Firefox 12, Opera AND Chrome - similar result. Great when the Zoom feature is about halfway up the scale, but zoom in closer, and some parts are clear, others aren't.

My guess is it's a site problem, but I'm no expert, these days...

May 20, 2012 9:57 AM in response to Geoff Roynon

I have a Macbook Pro 17", and ran into this problem as well. In my home I have two links to the internet, one is cable modem, and the other is ADSL. It does not matter which link I use, DNS resolution can take up to 4 minutes on virtually any site I go to. Since I manage networks, I know most of the tricks, but nothing I try has any lasting result.

Soooo ...

Last night I replaced my hard drive with a Seagate Momentus, and did a fresh load of Lion (over 4 hours) ... the result of all my hard work? DNS resolution is worse than before the reload. Just clicking the link to get to this discussion takes 45-65 seconds.

I am out of answers, and my frustration grows with this very expensive laptop.

Geoff Roynon Author

Level 1

44 points

May 20, 2012 10:16 AM in response to jimInNewOrleans

The problem you have is different from the one in this discussion - I have problems accessing one specific site, all other sites load with no problem.

It sounds like you have a general problem accessing all sites.

You could try using Open DNS (google it for more information).

Lion web browsing extremely slow for one site.