Phil, I went ahead and added a comment to that bug report to see what they
say. I'll try to dig up Firefox 3.6.8 on a Mac around here to get additional
specifics.
Bob
On Sun, Jul 25, 2010 at 8:30 AM, Robert Hanson <hans...@stolaf.edu> wrote:
> Phil, wait, there are a couple more issues before you go back to them.
>
> 1) Did you say in that bug report that the signed applet has the same
> problem? That would be a BIG and different issue.
>
> 2) The first structure always loads, right? That indicates that Java can
> access its cache appropriately.
>
> 3) If only the second structure loading does not work, what we have is a
> JavaScript thread issue. It is the JavaScript/LiveConnect THREAD that is
> being blocked.
>
> 4) Tests you need to do:
>
> I. Try opening a console and issuing the load command from there. If it
> loads, then it is DEFINITELY a browser liveConnect thread blocking issue.
>
> II. Try that again using the useCommandThread TRUE.
>
> Bob
>
>
>
>
>
> On Sun, Jul 25, 2010 at 8:11 AM, Robert Hanson <hans...@stolaf.edu> wrote:
>
>> You should be able to get any version of Firefox, and in fact, if you
>> search your Mac applications directory you will probably find it. Just start
>> it.
>>
>> OK, I have run a little test:
>>
>> 1. Monitor the Java Cache before and after starting the browser and
>> loading http://chemapps.stolaf.edu/jmol/docs/examples-11/new.htm
>>
>> 2. Close the browser
>>
>> 3. Repeat step 1.
>>
>> 4. Close the browser
>>
>> 5. Upload a NEW caffeine.xyz
>>
>> 6. Repeat step 1.
>>
>> Findings:
>>
>> 1. Java never "clears its cache." It just stores the file and the header
>> that came from the server associated with that file. That header contains a
>> date.
>>
>> 2. It looks like Java just first sends a message to a server asking for a
>> header, and if the header matches the one in the cache, then the file is not
>> downloaded, and the cached file is used instead. This is pretty standard
>> operation.
>>
>>
>> OK, so why the security bug? Obviously it is a Firefox bug. Doesn't happen
>> in older browsers; only appears with Mac 3.6.8. You need to respond to that
>> bug report reply and be very clear about that. It would be especially good
>> if you have verified that it all works with Firefox/Mac 3.5.7.
>>
>>
>> The bug is this (if you can confirm it on your Mac, Phil)
>>
>> Observation: Java applet running in Firefox 3.6.8/Mac specifically hit a
>> security violation when trying to read a file that was previously cached in
>> a prior browser session.
>>
>> Comments: This bug is specific to Firefox 3.6.8/Mac. It does not appear
>> with other operating systems and it does not appear with Firefox 3.5.7. All
>> works appropriately within one browser session, but after the browser is
>> closed and then re-opened, the applet cannot access any locally cached data
>> file from that previous session opened using Java's URL.openConnection()
>> method.
>>
>>
>> Bob
>>
>>
>> On Sun, Jul 25, 2010 at 7:08 AM, Robert Hanson
>>
>> <hans...@stolaf.edu> wrote:
>>
>>> Right - that does make sense -- submit a Java bug report, then. Make sure
>>> you have the latest Java available.
>>>
>>> On Sun, Jul 25, 2010 at 6:27 AM, Philip Bays <pb...@saintmarys.edu>wrote:
>>>
>>>> Does this response make sense to anyone? If Firefox does not look at
>>>> java cache, how can adjusting the cache (removing a file, turning it on or
>>>> off) have any affect? Because it is a bug in java that does not affect
>>>> non-mozilla browsers???
>>>>
>>>> Phil
>>>>
>>>> Begin forwarded message:
>>>>
>>>> *From: *bugzilla-dae...@mozilla.org
>>>> *Date: *July 25, 2010 4:52:35 AM EDT
>>>> *To: *pb...@saintmarys.edu
>>>> *Subject: **[Bug 581717] Firefox does not read java cache correctly*
>>>>
>>>> Do not reply to this email. You can add comments to this bug at
>>>> https://bugzilla.mozilla.org/show_bug.cgi?id=581717
>>>>
>>>> Jo Hermans <jo.herm...@gmail.com> changed:
>>>>
>>>> What |Removed |Added
>>>>
>>>> ----------------------------------------------------------------------------
>>>> Status|UNCONFIRMED |RESOLVED
>>>> CC| |jo.herm...@gmail.com
>>>> Resolution| |INVALID
>>>>
>>>> --- Comment #1 from Jo Hermans <jo.herm...@gmail.com> 2010-07-25
>>>> 01:52:33 PDT ---
>>>> That is a problem in your version of Java, Firefox doesn't read that
>>>> cache at
>>>> all. That's why you see the problem on Mac, but not on Windows
>>>> (different
>>>> versions).
>>>>
>>>> --
>>>> Configure bugmail: https://bugzilla.mozilla.org/userprefs.cgi?tab=email
>>>> ------- You are receiving this mail because: -------
>>>> You reported the bug.
>>>>
>>>>
>>>> J. Philip Bays
>>>> Professor of Chemistry
>>>> Department of Chemistry and Physics
>>>> Saint Mary's College
>>>> Notre Dame, IN 46556
>>>> (574) 284-4663
>>>> pb...@saintmarys.edu
>>>>
>>>>
>>>>
>>>>
>>>>
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>>>>
>>>
>>>
>>> --
>>> Robert M. Hanson
>>> Professor of Chemistry
>>> St. Olaf College
>>> 1520 St. Olaf Ave.
>>> Northfield, MN 55057
>>> http://www.stolaf.edu/people/hansonr
>>> phone: 507-786-3107
>>>
>>>
>>> If nature does not answer first what we want,
>>> it is better to take what answer we get.
>>>
>>> -- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900
>>>
>>
>>
>>
>> --
>> Robert M. Hanson
>> Professor of Chemistry
>> St. Olaf College
>> 1520 St. Olaf Ave.
>> Northfield, MN 55057
>> http://www.stolaf.edu/people/hansonr
>> phone: 507-786-3107
>>
>>
>> If nature does not answer first what we want,
>> it is better to take what answer we get.
>>
>> -- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900
>>
>
>
>
> --
> Robert M. Hanson
> Professor of Chemistry
> St. Olaf College
> 1520 St. Olaf Ave.
> Northfield, MN 55057
> http://www.stolaf.edu/people/hansonr
> phone: 507-786-3107
>
>
> If nature does not answer first what we want,
> it is better to take what answer we get.
>
> -- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900
>
--
Robert M. Hanson
Professor of Chemistry
St. Olaf College
1520 St. Olaf Ave.
Northfield, MN 55057
http://www.stolaf.edu/people/hansonr
phone: 507-786-3107
If nature does not answer first what we want,
it is better to take what answer we get.
-- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900
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