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Web service calls

Web services are a new technology and, indeed, a new technology for JavaScript. In this chapter, you
learned how two browsers, Internet Explorer and Mozilla, are trying to give JavaScript developers access
to Web service functionality.
You learned how Microsoft created an HTML component to encapsulate Web service calls. This
component reads Web service information from a WSDL file and develops a friendly object
to handle the requests and responses.
You also learned how Mozilla is still developing its Web service functionality. It provides a low-level
SOAP API and also WSDL proxies. Issues of cross-domain security and advanced privileges are also dis-
cussed as they relate to Web services.
Lastly, you were introduced to a cross-browser Web service solution that, although not pretty, can pro-
vide a common interface for use in both Internet Explorer and Mozilla.
Chapter 17
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