[developers] logon demo giving 502 proxy error

Joshua Crowgey jcrowgey at u.washington.edu
Mon Oct 19 23:22:39 CEST 2015 

And now I'm not getting the error.  I'm not sure if someone issued a fix
or if this is just an intermittent error.  --Joshua

On 10/19/2015 01:21 PM, Joshua Crowgey wrote:
> Dear developers,
> 
> I'm getting a 502 "Proxy Error" when I try to use the on-line demo for
> the ERG:
> 
> http://erg.delph-in.net/logon
> 
> The page loads just fine, but if I try to submit anything in the box, I
> get the reply:
> 
> Proxy Error
> 
> The proxy server received an invalid response from an upstream server.
> The proxy server could not handle the request POST /logon.
> 
> Reason: Error reading from remote server
> 
> 
> ---
> 
> For fun, I tried submitting the request with CURL and only two
> parameters and I didn't get a proxy error, it seems that I got 5
> invisible results instead.
> 
> ===BEGIN-TERMINAL-OUTPUT===
> jcrowgey at quercus:~/Desktop$ curl -X POST -d "text=Sandy
> runs&task=Analyze" http://erg.delph-in.net/logon
> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
> <html><head><meta HTTP-EQUIV="Content-Type" CONTENT="text/html;
> charset=utf-8"><title>English Resource Grammar (ERG) LOGON On-Line
> Demonstrator (Analysis)</title>
> <link TYPE="text/css" REL="stylesheet" HREF="/logon.css">
> <link TYPE="image/gif" REL="icon" HREF="/icon.gif">
> <script SRC="/logon.js" LANGUAGE="javascript"
> TYPE="text/javascript"></script><script SRC="/custom.js"
> LANGUAGE="javascript" TYPE="text/javascript"></script><script
> SRC="/prototype.js" LANGUAGE="javascript"
> TYPE="text/javascript"></script><script SRC="/scriptaculous.js"
> LANGUAGE="javascript" TYPE="text/javascript"></script>
> <script SRC="/alttxt.js" LANGUAGE="javascript"
> TYPE="text/javascript"></script>
> <script>__transferP__ = false;
>   __generateP__ = true;
>   __translateP__ = false;
> </script>
> <script>window.name = 'default'</script>
> </head>
> <body ONLOAD="messenger()">
> <center><form ACTION="/logon" METHOD="post" ID="main"
> ONSUBMIT="submitter('main')" ACCEPT-CHARSET="utf-8" TARGET="_self">
> <input TYPE="button" CLASS="bright" VALUE="Sample"
> ONCLICK="showSample('main', 'input');">&nbsp;<input TYPE="button"
> CLASS="bright" VALUE="Reset" ONCLICK="clearElement('main',
> 'input');">&nbsp;<input TYPE="text" NAME="input" CLASS="bright"
> VALUE="Try pressing return in this window!" SIZE="70">&nbsp;<input
> TYPE="submit" NAME="task" CLASS="bright" ID="analyze" VALUE="Analyze"
> DISABLED 'ONCLICK="setTarget('main', '_self');">&nbsp;<input
> TYPE="submit" NAME="task" CLASS="bright" ID="translate"
> VALUE="Translate" DISABLED 'ONCLICK="setTarget('main', '_self');"><br>
> <table border="0" cellspacing="0">
> <tr>
> <td CLASS="buttons">allow:</td><td CLASS="buttons"><input
> TYPE="checkbox" NAME="roots" VALUE="sentences" CHECKED></td><td
> CLASS="buttons">sentences</td><td CLASS="buttons"><input TYPE="checkbox"
> NAME="roots" VALUE="fragments"></td><td
> CLASS="buttons">fragments</td><td CLASS="buttons"><input TYPE="checkbox"
> NAME="roots" VALUE="less ambiguity"></td><td CLASS="buttons">less
> ambiguity</td><td CLASS="buttons"><input TYPE="checkbox" NAME="roots"
> VALUE="minor errors"></td><td CLASS="buttons">minor errors</td>
> <td class="buttons">&nbsp;&nbsp;|&nbsp;&nbsp;unknown words:</td><td
> CLASS="buttons"><input TYPE="checkbox" NAME="genericsp"
> VALUE="yes"></td></tr></table>
> <table BORDER=0 CELLSPACING=0><tr><td CLASS="buttons">search:</td><td
> CLASS="buttons"><input TYPE="RADIO" NAME="exhaustivep"
> VALUE="all"></td><td CLASS="buttons">all</td><td CLASS="buttons"><input
> TYPE="RADIO" NAME="exhaustivep" VALUE="best" CHECKED></td><td
> CLASS="buttons">best</td><td
> CLASS="buttons">&nbsp;&nbsp;|&nbsp;&nbsp;output:</td><td
> CLASS="buttons"><input TYPE="checkbox" NAME="output"
> VALUE="tree"></td><td CLASS="buttons">tree</td><td
> CLASS="buttons"><input TYPE="checkbox" NAME="output"
> VALUE="eds"></td><td CLASS="buttons">eds</td><td CLASS="buttons"><input
> TYPE="checkbox" NAME="output" VALUE="mrs"></td><td
> CLASS="buttons">mrs</td><td
> CLASS="buttons">&nbsp;&nbsp;|&nbsp;&nbsp;show:&nbsp;</td><td
> CLASS="buttons"><select SIZE=1 NAME="nresults"><option
> VALUE="1">1</option><option VALUE="5" SELECTED>5</option><option
> VALUE="10">10</option><option VALUE="50">50</option><option
> VALUE="100">100</option><option VALUE="500">500</option><option
> VALUE="all">all</option></select></td><td
> CLASS="buttons">&nbsp;results</td></tr></table>
> </form></center><center>
> <div id=summary>[5 of 5 analyses; processing time: 0.13 seconds; 439
> edges]</div>
> <br>
> <form action="/browse" method=post id="browse"
> onsubmit="synchronize('main', 'browse')" accept-charset="utf-8"
> target="_blank">
> <input type=hidden name=item value=9729>
>   <input type=hidden name=results value=9730>
>   <input type=hidden name=exhaustivep value="best">
>   <input type=hidden name=nresults value="5">
>   <div id=action>
>   <input type=submit name=action class="bright" value=latex>
>   <input type=submit name=action class="bright" value=compare>
>   <select name=set size=1>
>     <option value=all>all analyses</option>
>     <option value=active selected>selection</option>
>     </select>
>   &nbsp;&nbsp;|&nbsp;&nbsp;
>   <input type=submit name=action class="bright" value="transfer"
> disabled onclick="setTarget('main', 'transfer')">
>   <input type=submit name=action class="bright" value="generate"
> onclick="setTarget('main', 'generate')">
>   <input type=submit name=action value=avm disabled>&nbsp;
>   <input type=submit name=action value=scope disabled>&nbsp;
>   </div>
> <div id=input>Try pressing return in this window!</div>
> <table class=results>
> <tr>
> <td class=resultsNavigation>
>   <table class=resultsNavigation>
>     <tr><td class=center>
> <div class=resultsNavigation>#&thinsp;0</div></td></tr>
>     <tr><td class=center><input type=checkbox name=selection
> value="0"></td></tr>
>   </table></td>
> </tr><tr>
> <td class=resultsNavigation>
>   <table class=resultsNavigation>
>     <tr><td class=center>
> <div class=resultsNavigation>#&thinsp;1</div></td></tr>
>     <tr><td class=center><input type=checkbox name=selection
> value="1"></td></tr>
>   </table></td>
> </tr><tr>
> <td class=resultsNavigation>
>   <table class=resultsNavigation>
>     <tr><td class=center>
> <div class=resultsNavigation>#&thinsp;2</div></td></tr>
>     <tr><td class=center><input type=checkbox name=selection
> value="2"></td></tr>
>   </table></td>
> </tr><tr>
> <td class=resultsNavigation>
>   <table class=resultsNavigation>
>     <tr><td class=center>
> <div class=resultsNavigation>#&thinsp;3</div></td></tr>
>     <tr><td class=center><input type=checkbox name=selection
> value="3"></td></tr>
>   </table></td>
> </tr><tr>
> <td class=resultsNavigation>
>   <table class=resultsNavigation>
>     <tr><td class=center>
> <div class=resultsNavigation>#&thinsp;4</div></td></tr>
>     <tr><td class=center><input type=checkbox name=selection
> value="4"></td></tr>
>   </table></td>
> </tr></table></form>
> </center>
> <center>
> <div id=version>[<a href="http://www.emmtee.net/">LOGON</a> (2014-08-09
> 12:04:28 +0200) &mdash; <a href="http://www.delph-in.net/erg">ERG
> (1214)</a> &mdash; <a href="http://www.delph-in.net/erg">ERG
> (1214)</a>]</div></center>
> <center><hr>
>   <small><i>(This on-line demonstrator is hosted at the
>   <a href=http://www.mn.uio.no/ifi/english/research/groups/ltg/>University
>   of Oslo</a>)</i></small></center>
> <div id="navtxt" class="navtext" style="position: absolute; top: -100px;
> left: 0px; visibility:
> hidden"></div></body></html>jcrowgey at quercus:~/Desktop$
> ===END-TERMINAL-OUTPUT===
> 
> Thanks in advance for any advice!
> 
> --
> Joshua Crowgey
>

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