https://www.dotnetzone.gr:443/cs/blogs/dpantontech/archive/2012/02/12/extjs-json-data-how-to.aspxBased on a nice (but alas not working) idea and as a follow up to my previous post about the fantastic Ext.NET framework [Greek language] today I present you with a how-to guide to Ext JS . First, let me remind you that Ext JS is the powerful JavaScriptelCommunityServer 2.1 SP3 (Build: 20423.1)https://www.dotnetzone.gr:443/cs/blogs/dpantontech/archive/2012/02/12/extjs-json-data-how-to.aspx#71635Tue, 27 Nov 2012 23:41:24 GMT2622095e-976c-431a-859e-16783ec7ecd7:71635Aron<p>Hello!</p> <p>I am new to ExtJS, found this nice tutorial, seems like the most complete and straightforward one available anywhere on the web. I followed it through and got it to work, but only on Internet Explorer. On both Firefox and Chrome, when I listen with Fiddler, I get the request made in OPTIONS method, rather than GET (which works, as it is the method implemented on the WCF service, and which gets called from IE). Due to that, it fails and I get error 405 (service saying: &quot;Method not implemented&quot;) Adding a &quot;method: GET&quot; to the proxy does not change anything.</p> <p>Why is it calling the service with OPTIONS method, am I missing something?</p>