EJSC graphics is working ok with Firefox browser. The problem is IE8/IE7. If I drop the file dhtmlx.js, graphics draws correctly. Is this a conflict with your version of excanvas and the EJSC version? What can I do to correct the situation?
Can you provide some sample or demo link where issue can be reconstructed?
Here is the source code of my simple test page. Can you run it? This version should draw correctly. But if you enable dhtmlx.js loading, then it does’n draw. Of course you need to set the directories and get the EJSC files.
Sorry! This board does not enable sending of the source file to you. How can I send it?
Normally it must be possible to attach files ( at least it works for zip and images )
If it doesn’t work - send an email with sample files directly to the support@dhtmlx.com
Here is the source code of my simple test page. Can you run it? This version should draw correctly. But if you enable dhtmlx.js loading, then it does’n draw. Of course you need to set the directories and get the EJSC files.
Error test page source.zip (2.22 KB)
Are you proceeding with my case? 
Because of obfuscation in EJSC code it is quite hard to detect the reason of the problem.
dhtmlx.js really includes excanvas , but it is not modified in any way.
Instead of using dhtmlx.js you can include only the necessary files , for necessary component ( excanvas used only in chart , and not used by any other )