topic Content of draw.js Changes in Windows8 (and others?) in ArcGIS JavaScript Maps SDK Questions

Content of draw.js Changes in Windows8 (and others?)

NathanaelVaughan — Thu, 19 Feb 2015 14:02:55 GMT

I have a web mapping page running api v. 3.11 which we have tested across multiple browsers on many systems.

During the beta testing period, we received reports that the page would not load from one user group. Rather than a 404 error, the page was reporting a scripting error and would halt loading and return a blank screen. The user group reported the problem on Windows 7 desktops, but I have only been able to replicate it on Windows 8 machines (every windows 8 machine I have tried).

The most vexing part of the problem appears to be differences in the way draw.js is read (we are using drawing tools). On computers which run the page successfully, a portion of draw.js shows as:

case d.TRIANGLE:this._addShape([[0,-48],[41.56921938165306,24],[-41.56921938165306,24],[0,-48]]

On the systems which do not load, an error is raised and the same draw.js code appears as

case d.TRIANGLE:this._addShape([[0,-48],[**************************,24],[-******************************,24],[0,-48]]

Where the "*" character raises an exception. When I view source, I see the same asterisks reported.

Further, if I make a local network copy of the same page, it will load with a different set of errors (Windows 8 seems to object to a padding setting in CSS for the internet copy). Behavior is poor across multiple browsers on affected systems which leads me to believe it is not a browser issue, but rather a system/OS issue.

Does anyone have an idea as to why this is occurring? I have used 2 computers on the same network and cannot fathom why the JS representation would be altered between Windows 7 and 8, let alone different installations of Windows 7.

Re: Content of draw.js Changes in Windows8 (and others?)

ChrisSergent — Thu, 19 Feb 2015 15:15:52 GMT

I tried it on Windows Server 2008 Standard R2 and Windows XP SP3 and the page loaded on both machines. When I get home, I can try it on my Windows 8 machine. If it loads on there, maybe you can at least rule out the OS. Have you considered referencing the JavaScript API 3.12 and also 3.10 to see if that makes a difference?

Re: Content of draw.js Changes in Windows8 (and others?)

NathanaelVaughan — Thu, 19 Feb 2015 15:25:34 GMT

As with most things in my life, understanding why something doesn't work doesn't mean you can't find the solution.

When I reference the esri-hosted files, the page loads without a problem (version 3.11 and 3.12). When I reference the locally hosted version, I get the weird error.

On a side note, I wrote a little python script to access the draw.js file that is causing the problems and when I run it on a computer which swaps in the asterisks, *surprise* python doesn't see asterisks. This leads me to believe it's some stupid browser/AV security issue (and specific to my "locally" hosted draw.js file).

Behavior is the same for locally hosted v 3.10, 3.12

Thanks for the help.