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Groups > comp.lang.javascript > #27345
| From | Robbie Brown <rob@example.com> |
|---|---|
| Newsgroups | comp.lang.javascript |
| Subject | Re: XMLHttpRequest and Google Chrome |
| Date | 2015-04-13 11:50 +0100 |
| Organization | A noiseless patient Spider |
| Message-ID | <mgg70i$19a$1@dont-email.me> (permalink) |
| References | <mgedt0$ki9$1@dont-email.me> <mgg2bc$1olt$1@adenine.netfront.net> |
On 13/04/15 10:30, Martin Honnen wrote:
> Robbie Brown wrote:
>
>> and here's a function I call when a page is loaded
>>
>> function getCart(){
>> var req = newXMLHttpRequest();
>> req.onreadystatechange = getReadyStateHandler(req, updateCart);
>> req.open("POST", "common/ManageCart?cartmode=crtget", true);
>> req.setRequestHeader("Content-Type",
>> "application/x-www-form-urlencoded");
>> req.send("");
>> }
>>
>> updateCart uses javascript DOM to update the innerHTML property of a
>> <div>
>>
>> The error in the Chrome javascript console is
>>
>> Uncaught TypeError: Cannot set property 'innerHTML' of null
>
> Please show the lines of code for which you get the error, the posted
> code does not set any innerHTML. And we also need to see the
> implementation of getReadyStateHandler.
>
Here is the code, please remember that this is a Chrome issue only and
the code works fine in other browsers
function getReadyStateHandler(req, responseXmlHandler) {
return function () {
if (req.readyState == 4) {
if (req.status == 200) {
responseXmlHandler(req.responseXML);
}
else {
alert("HTTP error: "+req.status);
}
}
}
}
function updateCart(cartXML) {
var cartsnapshot = document.getElementById("cartsnapshot");
cartsnapshot.innerHTML = getCartSnapshot(cartXML);
}
function getCartSnapshot(cartXML){
//get the total
var cartTotal =
cartXML.getElementsByTagName("cart")[0].getAttribute("cartTotal");
var total =
cartXML.getElementsByTagName("cart")[0].getAttribute("total");
var lines = cartXML.getElementsByTagName("line");
var cartSnapshot = ("<table cellpadding='2' cellspacing='0'
border='0' style='font-size:0.85em;'>");
if(cartTotal == 0){
cartSnapshot += "<tr><td>Your cart is empty</td></tr></table>";
}
else{
for(var i = 0; i < lines.length; i++){
var currentLine = lines[i];
cartSnapshot += "<tr><td>";
cartSnapshot += currentLine.getAttribute("itemCount");
cartSnapshot += " x " + currentLine.getAttribute("itemId")
+ ": ";
cartSnapshot += currentLine.getAttribute("itemName");
cartSnapshot += "</td></tr>";
}
if(cartTotal > 0){
cartSnapshot += "<tr><td><hr/>";
cartSnapshot += "<td></tr>";
cartSnapshot += "<tr><td>current cart total: <span
class='price'>£" + total + "</span> ";
cartSnapshot += "<td></tr>";
//hard rule
cartSnapshot += "<tr><td><hr/>";
cartSnapshot += "<td></tr>";
//navigation
cartSnapshot += "<tr><td align='left'>";
cartSnapshot += "<a href='Login?mode=checkout'>[checkout]
</a> <a href='common/cartView.jsp'> [view] <a
href='/CartLoader?mode=save'> [save] </a>";
cartSnapshot += "<td></tr>";
}
cartSnapshot += "</table>";
}
return cartSnapshot;
}
--
Not floundering ... just fishing
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XMLHttpRequest and Google Chrome Robbie Brown <rob@example.com> - 2015-04-12 19:36 +0100
Re: XMLHttpRequest and Google Chrome JJ <jj4public@vfemail.net> - 2015-04-13 12:33 +0700
Re: XMLHttpRequest and Google Chrome Robbie Brown <rob@example.com> - 2015-04-13 07:41 +0100
Re: XMLHttpRequest and Google Chrome Martin Honnen <mahotrash@yahoo.de> - 2015-04-13 11:30 +0200
Re: XMLHttpRequest and Google Chrome Robbie Brown <rob@example.com> - 2015-04-13 11:50 +0100
Re: XMLHttpRequest and Google Chrome Tim Streater <timstreater@greenbee.net> - 2015-04-13 13:17 +0100
Re: XMLHttpRequest and Google Chrome Robbie Brown <rob@example.com> - 2015-04-13 13:34 +0100
Re: XMLHttpRequest and Google Chrome Tim Streater <timstreater@greenbee.net> - 2015-04-13 14:26 +0100
Re: XMLHttpRequest and Google Chrome Martin Honnen <mahotrash@yahoo.de> - 2015-04-13 16:15 +0200
Re: XMLHttpRequest and Google Chrome Robbie Brown <rob@example.com> - 2015-04-13 16:03 +0100
Re: XMLHttpRequest and Google Chrome Martin Honnen <mahotrash@yahoo.de> - 2015-04-13 19:26 +0200
Re: XMLHttpRequest and Google Chrome "Christoph M. Becker" <cmbecker69@arcor.de> - 2015-04-13 20:23 +0200
Re: XMLHttpRequest and Google Chrome Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-04-13 15:50 +0100
Re: XMLHttpRequest and Google Chrome Robbie Brown <rob@example.com> - 2015-04-13 16:10 +0100
Re: XMLHttpRequest and Google Chrome "Christoph M. Becker" <cmbecker69@arcor.de> - 2015-04-13 17:46 +0200
Re: XMLHttpRequest and Google Chrome Robbie Brown <rob@example.com> - 2015-04-13 17:28 +0100
Re: XMLHttpRequest and Google Chrome "Christoph M. Becker" <cmbecker69@arcor.de> - 2015-04-13 19:14 +0200
Re: XMLHttpRequest and Google Chrome Tim Streater <timstreater@greenbee.net> - 2015-04-13 18:29 +0100
Re: XMLHttpRequest and Google Chrome Robbie Brown <rob@example.com> - 2015-04-13 18:59 +0100
Re: XMLHttpRequest and Google Chrome "Christoph M. Becker" <cmbecker69@arcor.de> - 2015-04-13 20:29 +0200
Re: XMLHttpRequest and Google Chrome Tim Streater <timstreater@greenbee.net> - 2015-04-13 19:34 +0100
Re: XMLHttpRequest and Google Chrome Robbie Brown <rob@example.com> - 2015-04-13 20:11 +0100
Re: XMLHttpRequest and Google Chrome "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-04-13 20:44 +0200
Re: XMLHttpRequest and Google Chrome Robbie Brown <rob@example.com> - 2015-04-13 20:21 +0100
Re: XMLHttpRequest and Google Chrome Denis McMahon <denismfmcmahon@gmail.com> - 2015-04-14 12:43 +0000
Re: XMLHttpRequest and Google Chrome Robbie Brown <rob@example.com> - 2015-04-14 14:50 +0100
Re: XMLHttpRequest and Google Chrome Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-04-14 22:51 +0200
Re: XMLHttpRequest and Google Chrome Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-04-13 22:28 +0200
Re: XMLHttpRequest and Google Chrome Robbie Brown <rob@example.com> - 2015-04-13 19:23 +0100
Re: XMLHttpRequest and Google Chrome Tim Streater <timstreater@greenbee.net> - 2015-04-13 19:38 +0100
Re: XMLHttpRequest and Google Chrome "Leonardo Azpurua" <leonardo@exmvps.org> - 2015-04-13 17:36 -0430
Re: XMLHttpRequest and Google Chrome Robbie Brown <rob@example.com> - 2015-04-14 11:35 +0100
Re: XMLHttpRequest and Google Chrome Denis McMahon <denismfmcmahon@gmail.com> - 2015-04-14 11:37 +0000
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