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It works, but doesn't really do what I want -- a failure in that case would never fire an event. I don't want to have to poll for a variable and, if it's still false after a few seconds, fire the on-fail callback.
– David
Commented Feb 11, 2009 at 21:43
What kind of error are you trying to retrieve? Failure to load? Failure to execute the javascript in nonexstant.js? HTTP Response Error? Please be more descriptive.
– Luca Matteis
Commented Feb 11, 2009 at 21:45
Any of the above would be good. I specifically care about a 404 error, though.
– David
Commented Feb 11, 2009 at 21:50
404, meaning you want to check if the file nonexistant.js doesn't exist? But if it does you want to check if it returned no error?
– Luca Matteis
Commented Feb 11, 2009 at 21:52
Hey David, you should be able to assume that if this.readyState/... is not true, then the script failed to load. Basically an onError.
– Cody
Commented Aug 16, 2012 at 23:44

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Correct minor typos or mistakes
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create code fences with backticks ` or tildes ~
```
like so
```
add language identifier to highlight code
```python
def function(foo):
print(foo)
```
put returns between paragraphs
for linebreak add 2 spaces at end
_italic_ or **bold**
indent code by 4 spaces
backtick escapes `like _so_`
quote by placing > at start of line
to make links (use https whenever possible)
<https://example.com>
[example](https://example.com)
<a href="https://example.com">example</a>

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