Error Invalid_state_err Dom Exception 11 Xmlhttprequest
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takes a minute: Sign up INVALID_STATE_ERR: DOM Exception 11 (WebKit) up vote 31 down vote favorite 11 I recently tested a Cappuccino app I was working on with Chrome and Safari. I get the error: INVALID_STATE_ERR: DOM Exception 11: An attempt was made to use an object that is not, or is no longer, usable. The lack of information is frustrating. invalidstateerror dom exception 11 xmlhttprequest What object and where did I attempt to use it? Chrome tries to answer the second question but the line number it gives, 465, doesn't mean anything when the file it gives is just 94 lines long. Without more information I don't even know where to start looking. javascript dom webkit cappuccino share|improve this question asked Aug 15 '10 at 18:35 Regis Frey 5151718 add a comment| 10 Answers 10 active oldest votes up vote 10 down vote accepted Chrome canary offers stack traces for DOM Exceptions! share|improve this answer answered Jun 16 '12 at 22:45 Jamie Pate 710712 1 This is the best answer to this question. Made my day. Thank you sir! –Nek Jun 25 '12 at 19:19 3 "DOM exceptions have stack trace in Chrome 21." code.google.com/p/chromium/issues/detail?id=64319 –Regis Frey Aug 17 '12 at 20:06 add a comment| up vote 52 down vote Usually this error occurs with the XMLHttpRequest when you call the open method with async = true, or you leave the async parameter undefined so it defaults to asynchronous, and then you acce
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and policies of this site About Us Learn more about Stack Overflow invalid state error xmlhttprequest the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation invalidstateerror javascript Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; http://stackoverflow.com/questions/3488698/invalid-state-err-dom-exception-11-webkit it only takes a minute: Sign up INVALID_STATE_ERR: DOM Exception 11 up vote 16 down vote favorite 5 I'm developing a simple auxiliary class to send requests using XmlHttpRequest (code below). But I cant make it work. At google chrome, for example, I get the error INVALID_STATE_ERR: DOM Exception 11 and at the other browsers I get a status == http://stackoverflow.com/questions/2357430/invalid-state-err-dom-exception-11 0. //@method XRequest: Object constructor. As this implements a singleton, the object can't be created calling the constructor, GetInstance should be called instead function XRequest() { this.XHR = XRequest.CreateXHR(); } XRequest.instance = null; //@method static GetInstance: Creates a singleton object of type XRequest. Should be called whenever an object of that type is required. //@return: an instance of a XRequest object XRequest.GetInstance = function() { if(XRequest.instance == null) { XRequest.instance = new XRequest(); } return XRequest.instance; } //@method static CreateXHR: Implments a basic factory method for creating a XMLHttpRequest object //@return: XMLHttp object or null XRequest.CreateXHR = function() { var xhr = null; var factory = [ function() { return new XMLHttpRequest(); }, function() { return new ActiveXObject("Msxml2.XMLHTTP"); }, function() { return new ActiveXObject("Microsoft.XMLHTTP"); } ]; for(var i = 0; i < factory.length; ++i) { var f = factory[i]; xhr = f(); if(xhr) return xhr; } return null; } XRequest.prototype.SetRequestHeader = function(name, value) { if(this.XHR) { this.XHR.setRequestHeader(name, value); } } XRequest.prototype.SendRequest = function(args) { var async = true; var type = ""; var url = ""; var use
== 4 && ajax.status==404) { to make sure that the object is ready before accessing the status. I tried that, but that doesnt seem to have made any effect :( javascript - INVALID_STATE_ERR: DOM Exception 11 - Stack https://recalll.co/app/?q=javascript%20-%20INVALID_STATE_ERR%3A%20DOM%20Exception%2011%20-%20Stack%20Overflow Overflow View More at http://stackoverflow.com/questions/6785248/invalid-state-err-dom-... Regardless, you can simplify your SendRequest method by creating a mixin instead of using a giant switch. XRequest.prototype.SendRequest = function(params) { var defaultParams = { async: true, type: "", url: "", username: "", password: "", body: null, success: null, failure: null }; for ( var i in defaultParams ) { if ( defaultParams.hasOwnProperty(i) && typeof params[i] == "undefined" ) { params[i] = defaultParams[i]; } } var that dom exception = this; this.XHR.onreadystatechange = function() { if ( that.XHR.readyState == 4 ) { if ( that.XHR.status == 200 || that.XHR.status == 0 ) { if ( params.success ) { params.success(that.XHR); } } else { if ( params.failure ) { params.failure(); } } } }; this.XHR.open( params.type, parms.url, params.async, params.username, params.password ); // It doesn't make sense to have a for/switch here when you're only handling // one case if ( params.setHeader dom exception 11 ) { var h = params.setHeader.split(":"); if ( h.length == 2) { this.SetRequestHeader(h[0], h[1]); } } this.XHR.send(params.body); }; Also be careful: your existing for..in loops have two distinct problems: You're not using var and causing a global to be created: for (e in args) should be for (var e in args) Whenever you use for..in, you should always check to make sure that each key is a direct member of the object, and not something inherited inadvertently through prototype for ( var i in obj ) { if ( obj.hasOwnProperty(i) ) { // do stuff here } } javascript - INVALID_STATE_ERR: DOM Exception 11 - Stack Overflow View More at http://stackoverflow.com/questions/2357430/invalid-state-err-dom-... Usually this error occurs with the XMLHttpRequest when you call the open method with async = true, or you leave the async parameter undefined so it defaults to asynchronous, and then you access the status or responseText properties. Those properties are only available after you do a synchronous call, or on the readyState becoming ready (once the asynchronous call responds). I suggest you first try with async = false, and then switch to it being true and use the onReadyStateChange. exactly what I needed: I checked for status, but not for readyState. But it's important to have readyState == 4 before checki