topic Re: 3.9 Internal Server Error 500 in ArcGIS JavaScript Maps SDK Questions

3.9 Internal Server Error 500

BrianCowan — Wed, 14 May 2014 12:27:32 GMT

I downloaded ArcGIS 3.9 but after updating the files and running my map I got the following error

GET http://localhost:9000/proxy?./proxy?http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer/tilemap/10/408/272/8/8 500 (Internal Server Error)

Any help would be greatly appreciated!

Re: 3.9 Internal Server Error 500

Noah-Sager — Wed, 14 May 2014 15:17:36 GMT

Hi ClevelandFan,

Welcome to Esri Forums! Thank you for posting your question here.

From the error message in the picture you uploaded, it looks like the error is related to the proxy. Have you download and configured the proxy to work with your application? I would start here. Also, there are good instructions in the ReadMe file on GitHub.

Using the proxy
https://developers.arcgis.com/javascript/jshelp/ags_proxy.html

Hope this helps!

-Noah

Re: 3.9 Internal Server Error 500

BrianCowan — Wed, 14 May 2014 15:28:23 GMT

Thank you for your response Noah!

I had everything working fine with 3.8 but upgrading to 3.9 caused that to crash after downloading it, changing the files, and updating the database. From what I could tell it had to do with it trying to access the proxy twice in the GET call GET http://localhost:9000/proxy?./proxy......from init.js, but I never had that problem with 3.8. Is there a separate download needed for it to work with the existing project?

Thank you

Re: 3.9 Internal Server Error 500

Noah-Sager — Wed, 14 May 2014 15:39:52 GMT

As far as I know, there isn't a separate download needed for this sort of workflow. I haven't locally hosted version 3.9 yet, so I'll give that a shot and see if I can reproduce the error.

Are you using our proxy? If so, which proxy are you using, DotNet, Java, or PHP?

Can you recreate the error in a simplified sample application?

Re: 3.9 Internal Server Error 500

JeffPace — Wed, 14 May 2014 16:53:18 GMT

Thank you for your response Noah!

I had everything working fine with 3.8 but upgrading to 3.9 caused that to crash after downloading it, changing the files, and updating the database. From what I could tell it had to do with it trying to access the proxy twice in the GET call GET http://localhost:9000/proxy?./proxy......from init.js, but I never had that problem with 3.8. Is there a separate download needed for it to work with the existing project?

Thank you

The API doesnt have a database, so I am also confused about your comment. If you are doing a local install, does the sample page work?

Based on the link you posted it looks like you have a pathing error in your map

Re: 3.9 Internal Server Error 500

BrianCowan — Thu, 15 May 2014 13:25:01 GMT

After some tweaking I was able to load the map but I now receive a 403 Forbidden error. It appears esri.config.defaults.io.proxyUrl is placing ./proxy twice.

http://localhost:9000/proxy?/proxy?http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer/tilemap/10/408/272/8/8

Re: 3.9 Internal Server Error 500

JohnGravois — Thu, 15 May 2014 14:25:54 GMT

brian,
can you share the line of code where you set the location of your proxy and explain where it actually sits with respect to your application?

also, since your proxy is throwing a 403, are you sure that the resource which is being requested is specified in your proxy.config whitelist?

Re: 3.9 Internal Server Error 500

TamaraOsborn — Wed, 16 Jul 2014 18:01:23 GMT

I am having exactly the same problem where the proxy appears twice in the request URL. This is also specific to tilemap like Brian's problem.

I am using the latest JSP proxy from github, ver 1.0. I have not modified the proxy at all. My proxy.config has the following in it:

<serverUrl url="http://services.arcgisonline.com"

matchAll="true"/>

My other calls are fine, it is just a couple for tilemap that are failing because of the invalid url format.

If you fixed it, how did you do it?

Re: 3.9 Internal Server Error 500

JeffPace — Wed, 16 Jul 2014 18:50:13 GMT

Where do you set using the proxy in your application?

i.e.

esri.config.defaults.io.proxyUrl = 'proxy.jsp';

Re: 3.9 Internal Server Error 500

TamaraOsborn — Wed, 16 Jul 2014 19:03:12 GMT

In appFunctions.js which is where I keep all my app objects.

Below is the order of scripts in index.html. appFunctions is the 3rd one in the list.

Re: 3.9 Internal Server Error 500

MatthewLofgren — Wed, 16 Jul 2014 19:47:16 GMT

I had this problem too. I came across a post, that I can't seem to find now, that said to use an absolute path rather than relative path because of some bug.

So, something like this:

esriConfig.defaults.io.proxyUrl = "http://yourServer/proxy.ashx"; //Full path required due to some bug....

Re: 3.9 Internal Server Error 500

JeffPace — Thu, 17 Jul 2014 14:10:44 GMT

in appfunctions.js, what is the actual line that sets it? it feels like you are pathing incorrecting (especially if hardcoding the path fixes it)

Re: 3.9 Internal Server Error 500

TamaraOsborn — Thu, 17 Jul 2014 15:10:06 GMT

Thanks for the suggestion. Hardcoding the path ( esri.config.defaults.io.proxyUrl = "http://localhost:8080/proto1/proxy/proxy.jsp";) didn't fix the problem. The same thing happens where the proxy appears twice in the request URL - see below.

http://localhost:8080/proto1/proxy/proxy.jsp?http://localhost:8080/proto1/proxy/proxy.jsp?http://services.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer/tilemap/6/16/8/8/8

Re: 3.9 Internal Server Error 500

JeffPace — Thu, 17 Jul 2014 15:15:29 GMT

wish i could see more of your code. It really sounds like you have a double reference to the proxy. Especially since hardcoding it makes the hardcoded value show up twice.

Are you doing any request modification? can you post appfunctions.js?

Re: 3.9 Internal Server Error 500

TamaraOsborn — Thu, 17 Jul 2014 15:22:25 GMT

Hardcoding path didn't fix it - see above reply to Matthew Lofgren. The 2 lines I have in appFunctions.js are:

esri.config.defaults.io.proxyUrl = "proxy/proxy.jsp";

esri.config.defaults.io.alwaysUseProxy = true;

My file structure is:

proto1

index.html

/proxy

proxy.jsp

/lib

appFunctions.js

I tried moving only proxy.jsp to the root folder - same errors. Then I tried moving only appFunctions.js to the root folder. Same errors. Then I tried moving both files to my root. Same errors. So far it doesn't seem like a pathing issue.

Here's the invalid request URL: http://localhost:8080/proto1/proxy.jsp?proxy.jsp?http://services.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer/tilemap/6/16/8/8/8

And here's another call in the same session that is formatted correctly and worked fine: http://localhost:8080/proto1/proxy.jsp?http://server.arcgisonline.com/ArcGIS/rest/services/ESRI_StreetMap_World_2D/MapServer/tile/6/15/19

Re: 3.9 Internal Server Error 500

JeffPace — Thu, 17 Jul 2014 15:32:11 GMT

If you get some good requests, it sounds like the pathing to the proxy are set up properly. That leaves two possibilites

1. Internally in the proxy there is an error causing it to be recursively called

2. Something about the resource it self, or the way you defined it, is causing the duplicate issue.

Can you show the code in the proxy, and the code where you add the problematic world_topo_map service

Re: 3.9 Internal Server Error 500

TamaraOsborn — Thu, 17 Jul 2014 16:44:16 GMT

I stripped out everything to the bare minimum and flattened all my code. Still have the problem. To me, it appears there is a bug in the proxy. So here's all the code I have now. Apologies for the length. If you'd like, I can also email you the files. Appreciate any help you can give me. I haven't tried to debug the proxy itself.

My app now consists of only 3 files: index.html, proxy.jsp and proxy.config. Structure is:

proto1 (root)

index.html

proxy.jsp

WEB-INF/classes/proxy.config

Index.html code:

<!DOCTYPE html>

<html>

<head>

<title>Butterflies Survey</title>

require(["esri/map", "dojo/domReady!"],

function (Map ) {

esri.config.defaults.io.proxyUrl = "proxy.jsp";

esri.config.defaults.io.alwaysUseProxy = true;

var effortMap = new Map("effortMap", {

center: [-122.3348, 47.5978],

zoom: 6,

sliderStyle: "large",

basemap: "topo"

});

</script>

</head>

</section>

</div>

<br/>

</body>

</html>

Proxy.config code:

<?xml version="1.0" encoding="utf-8" ?>

<ProxyConfig allowedReferers="*"

logFile="proxy_log.log"

logLevel="INFO"

mustMatch="true">

<serverUrl url="http://services.arcgisonline.com"

matchAll="true"/>

<serverUrl url="http://server.arcgisonline.com"

matchAll="true"/>

<serverUrl url="http://static.arcgis.com"

matchAll="true"/>

</serverUrls>

</ProxyConfig>

Proxy.jsp code can be found on github - ver 1.0: https://github.com/Esri/resource-proxy/releases

Re: 3.9 Internal Server Error 500

JeffPace — Thu, 17 Jul 2014 16:54:27 GMT

Ok two things, first edit you response. click go advanced editing. Then highlight the code, hit the doubleright arrow (bottom right) and select syntax highlighting, and choose java.

Ok second. wow, thats complicated. My concern is the proxyrefered. It looks like you are defining the proxy, and so is ESRI. So both of you are proxying requests.

Can you try setting alwaysuseproxy to false?

Re: 3.9 Internal Server Error 500

TamaraOsborn — Thu, 17 Jul 2014 17:24:23 GMT

Actually, instead of including the proxy.jsp code, i replaced it with the link to github where it can be downloaded. I haven't modified it at all.

Of course setting alwaysUseProxy to false will cause it to bypass the proxy then the errors do not happen. Is that the recommendation from ESRI?

Why would the proxy work for #1 below but not #2?

Re: 3.9 Internal Server Error 500

JeffPace — Thu, 17 Jul 2014 17:59:10 GMT

does this on work?

World_Topo_Map (MapServer)‌

im noticing that the second one is using a tilemap and not tile.. seems like a different format, and if you go straight to the path, the first link returns a tile, the second one does not