Viewing downloaded html-code in a webview -AppleEventhandler failed(-10000)

Question

I am trying to view downloaded html-code in a webview in AppleScript Studio. Showing the raw html text in the textwindow works ok, but I am getting an error message trying to output the code to the webview.
I really googled for a solution to this before posting, but haven´t found anything.
It´s the last line "call method "loadHTMLString:baseURL:"....." that is giving me the error.
What´s wrong?
on launched theObject
-- this downloads the source from www.google.com into the variable myhtml
-- and displays the source in a text view window:
set myhtml to do shell script "curl www.google.com"
set contents of text view "textwindow" of scroll view "textwindow" of window "textwindow" to myhtml
-- this should give a variable that points to the webview in the webview window
-- everything in this window is labeled "webwindow" in the applescript properties in IB:
set webwindow to call method "mainFrame" of object (view "webwindow" of window "webwindow")
call method "loadHTMLString:baseURL:" of webwindow with parameters {myhtml, null}
end launched
AppleScript Error
AppleEvent handler failed. (-10000)
[Session started at 2008-12-30 14:09:48 +0100.]
2008-12-30 14:09:49.395 webkladd2[15485:10b] * -[NSCFNumber absoluteURL]: unrecognized selector sent to instance 0x2cea40
2008-12-30 14:09:49.397 webkladd2[15485:10b] An exception was thrown during execution of an NSScriptCommand...
2008-12-30 14:09:49.399 webkladd2[15485:10b] * -[NSCFNumber absoluteURL]: unrecognized selector sent to instance 0x2cea40

Answer 1

Hello
IF I'm not mistaken, you should provide "http://www.google.com/" for baseURL of your html source obtained from "http://www.google.com" unless this page defines its own base.
So you might try something like -
--SNIPPET
set myhtml to do shell script ("curl " & "http://www.google.com")
set nsstring to call method "stringWithString:" of class "NSString" with parameter "http://www.google.com/"
set urlstring to call method "stringByAddingPercentEscapesUsingEncoding:" of nsstring with parameter 4 -- UTF-8
set nsurl to call method "URLWithString:" of class "NSURL" with parameter urlstring
set webwindow to call method "mainFrame" of object (view "webwindow" of window "webwindow")
call method "loadHTMLString:baseURL:" of webwindow with parameters {myhtml, nsurl}
--END OF SNIPPET
cf.
http://developer.apple.com/documentation/Cocoa/Reference/Foundation/ObjC_classic /
Snippet is NOT tested, though I did go by the book as best I could.
Good luck,
H