<div dir="ltr">Hi,<div><br></div><div>Interesting how the extra invisible character got inserted into the problem title?? I have renamed the affected problems so that they do not contain the character. Hopefully that helps though I suspect you may have to delete the old problems and import the "new" problems. </div><div><br></div><div>-hk</div><div><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Sep 22, 2014 at 1:12 AM, Craig Wiegert <span dir="ltr"><<a href="mailto:wiegert@physast.uga.edu" target="_blank">wiegert@physast.uga.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi all,<br>
<br>
One of our instructors has encountered difficulties with some of the<br>
problems in the OpenStax archive. He is able to incorporate the<br>
resources into a sequence just fine, and both he and the students can<br>
access the problems. However, whenever someone submits an answer, they<br>
get the "invalid access" error: "Sorry... This action is currently not<br>
authorized."<br>
<br>
For example, in the<br>
<br>
/res/fsu/openstax-CollegePhysics/14_HeatAndHeatTransfer/<br>
<br>
directory, he was having trouble with Problems 05, 08, and 10.<br>
<br>
It turns out that the filename for each of these troublesome problems<br>
includes a UTF-8 encoded "invisible" Byte-Order Mark (BOM) right after<br>
the underscore (hex ef bb bf). This is evident by looking at the<br>
URL-encoding of these resource filenames, e.g., when incorporating them<br>
into a sequence.<br>
<br>
Is our ability to "read but not answer" these problems a Unicode bug<br>
within the perl code of LON-CAPA itself? Is it something obscurely<br>
locale-related on our servers? Any help would be appreciated!<br>
<br>
- Craig<br>
<br>
----------------------------------------------------------------------<br>
Craig Wiegert Office: 215 Physics Building<br>
Undergraduate Physics Coordinator<br>
Associate Professor Phone: 706-542-4023<br>
Department of Physics & Astronomy Fax: 706-542-2492<br>
University of Georgia Email: <a href="mailto:wiegert@physast.uga.edu">wiegert@physast.uga.edu</a><br>
Athens, GA 30602-2451 <a href="mailto:cwiegert@uga.edu">cwiegert@uga.edu</a><br>
<br>
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</blockquote></div><br></div></div>