What are some reasons that ajax will refuse to open a connection?

T

TheNewDude

New member
For some reason, I am having trouble opening a connection to a php page via ajax. I have tried an alert on the url to make sure it was using the correct url and it was. I did an alert on the onreadystatechange to make sure it has been reaching level 4. That worked wothout any problems. Then I tried to setup an alert so that I could tell if a connection was being opened, but it doesn't seem to be opening a connection. I tried to send the alert as:

if (xhr.open("GET",url,true)) {
if (xhr.send(null)) {
alert("Success so far");
}
}

I also tried:

if (xhr.open("GET",url,true)) {
alert("Success so far");
xhr.send(null));
}

Neither of those worked so now I am trying to figure out why the connection isn't opening. Does anybody have any suggestions?
 
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