[OpenLayers-Users] Re: SOLVED - Firefox nsIXMLHttpRequest.send throwing 0xc1f30001 (NS_ERROR_NOT_INITIALIZED)

[Eric Lemoine]

On Tuesday, May 10, 2011, flexer <Andrey.Aniskovets at gmail.com> wrote:
> I have got the same error (Exception... "Component returned failure code:
> 0xc1f30001 .... )
> And I have found another solution:
>
> Do NOT call "this._object.send(vData);"
> if  "this._object.abort();" has been called (see XMLHttpRequest.js).
>
> -----------------------
> Look at Request.js:
>             window.setTimeout(function(){
>                 if (request._aborted !== true) {
>                     request.send(config.data);
>                 }
>             }, 0);
>
> and look at XMLHttpRequest.js :
>     cXMLHttpRequest.prototype.send    = function(vData) {
>         // Add method sniffer
>         if (cXMLHttpRequest.onsend)
>     ....
>
> and look at XMLHttpRequest.js:
>    cXMLHttpRequest.prototype.abort    = function() {
>         ....
>         // BUGFIX: Gecko - unnecessary DONE when aborting
>         if (this.readyState > cXMLHttpRequest.UNSENT)
>             this._aborted    = true;
>         this._object.abort();
>         ....
> -----------------------
>
> I have added to XMLHttpRequest.js these lines and the problem was solved:
>
>     cXMLHttpRequest.prototype.send    = function(vData) {
>         if (!!this._isAbortCalled)
>             return;
>         ....
>
>     cXMLHttpRequest.prototype.abort    = function() {
>         this._isAbortCalled    = true;
>         ....
>
> ---------------------
> I.e.
>       try { this._object.send(vData); } catch (e) {}
> looks like a workaround.
> What do you think?
> Could you check my changes on your system if it solves your problem?

Hi

Is the problem reproducible on one of the OpenLayers examples?
(http://www.openlayers.org/dev/examples)

What version of OpenLayers do you use? Do you have the problem with
OpenLayers trunk?

XMLHttpRequest.js already includes a state variable to know if abort()
has been called, namely _aborted. But abort() sets _aborted to true
only if the XHR status is greater than UNSET. Could you try to have
abort() unconditionally set _aborted to true and see if that fixes it?
Thanks.

-- 
Eric Lemoine

Camptocamp France SAS
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73377 Le Bourget du Lac, Cedex

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