Question

i m getting error in firebug console

uncaught exception: [Exception... "'Invalid save data.' when calling method: [nsIDOMEventListener::handleEvent]" nsresult: "0x8057001e (NS_ERROR_XPC_JS_THREW_STRING)" location: "JS frame :: chrome://firebug/content/spy.js :: callPageHandler :: line 744" data: no]

When i put this code

value = key+'^_^'+value;

But when i modify this code and put

value = key

the error removes.

so does this error affect my code?

Answer 1

I have an inkling that this might be a good place for exceptions. Exceptions allow you catch errors, which in Javascript is very handy indeed because it also allows you to execute altetrnative code if your browser doesn’t support what you are trying to do.

try {
  somethingThatOnlyWorksInChrome();
}
catch (ex) {
  worksInEverythingElse();
}