#9268: Notebook Server replies to Plot3d-Data-Request with Status 301
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Reporter: ManDay | Owner: jason, was
Type: defect | Status: new
Priority: major | Milestone:
Component: notebook | Keywords: notebook java jmol black
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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This issue has long caused problems, although many people managed to get
it fixed without actually knowing what caused it. As discussed in all
detail in the following thread
http://groups.google.com/group/sage-
notebook/browse_thread/thread/9191e031224a3ce9
JMol requests the data for the plot3d from the Sage backend. When it does
so, on some occasions it receives a 301 Moved Permanently which Java is
not following but interprets as 200 and parses the content - which then
causes the error.
This is partly a client-side Java problem as Java should perhaps follow
the 301 to the new location and then pass the data transparently but also
Sage shouldn't provide a 301'd location in the first place.
Further details, such as the fact that this does not happen for applets
which are part of a published worksheet can be found in the thread.
Can be fixed by making JMol pointing to the correct location or make Sage
transparently return the data instead of a 301.
This problem occurs with both, the open IcedTea (OpenJDK) and propritary
Sun Java in Firefox 3.6 on Ubuntu 10.4LTS.
On a sidenote, I assume that other people do not have this problem because
they might have additional packages installed which compensate for the
301.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9268>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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