thanks Rick for the reply.
yes i used historically the 2 methods you pointed.
1-by adding a key on the registry for vfp9.exe
2-or by adding a meta tag in the document  as :
 < meta http-equiv="X-UA-Compatible" content="IE=edge"  / > (IE11...)

can see these 2 methods for ex. in my blog at:
http://yousfi.over-blog.com/2015/01/who-said-that-vfp-ie-browser-died.html
http://yousfi.over-blog.com/2015/06/a-simple-portable-html5-videoplayer-as-executable.html

vfp have OOP and its logic  seems to be diffrent with DOM as demo in the code i shipped because 
the result are diffrent.
In principe DOM is independant and can be used by languages to traverse the html5 canvas.
Actually its the javascript speciality.
I know java , python maybe perl have developped some canvas support.
DOM (W3C standard):The Document Object Model is a platform- and language-neutral interface that
 will allow programs and scripts to dynamically access and update the content, structure and
 style of documents.

for sure the vfp method i used in the code is wrote for javascript OOP and in part for vfp
.that why i used vfp as builder with javascript inside to work with html5 canvas.
what is needed to vfp to do successfully the same goal ?