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Error accessing localhost

  • 6 válasz
  • 2 embernek van ilyen problémája
  • 12 megtekintés
  • Utolsó üzenet ettől: shrdlu1497

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I am trying to access a database on my PC using Firefox and PHP.

The Javascript code I am using is

xmlHttp=new XMLHttpRequest();

var url = 'http://Localhost:8080/Library/dbRequest.php/';

xmlHttp.open("GET",url,false);

xmlHttp.send(null); (this is line 68)

I get the error:

Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE)" nsresult: "0x80004005 (NS_ERROR_FAILURE)" location: "JS frame :: [localhost] :: sendQuery :: line 68" data: no]

I have all wampserver services running

The Javascript and php code files are in c:\wamp\www\Library

Thanks in advance

I am trying to access a database on my PC using Firefox and PHP. The Javascript code I am using is xmlHttp=new XMLHttpRequest(); var url = 'http://Localhost:8080/Library/dbRequest.php/'; xmlHttp.open("GET",url,false); xmlHttp.send(null); (this is line 68) I get the error: Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE)" nsresult: "0x80004005 (NS_ERROR_FAILURE)" location: "JS frame :: [localhost] :: sendQuery :: line 68" data: no] I have all wampserver services running The Javascript and php code files are in c:\wamp\www\Library Thanks in advance

Összes válasz (6)

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Firefox has restricted use of synchronous XMLHttpRequest in some cases. I don't know whether there is a good page summarizing the changes, so I'm not sure whether your example is affected by them. Could you try setting async to true? I realize this requires other code changes, so perhaps wait for other comments.

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I've tried synchronous/asynchronous. Nothing seems to work. I must be missing something obvious. Does anyone have an example of using JS and PHP with the current version of Firefox? Thanks

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Is there anything relevant in the Error Console (Ctrl+Shift+j)?

Is the requesting page located on the identical hostname and port number?

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The error console message is

Timestamp: 2012-06-26 11:40:55 Error: uncaught exception: [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE)" nsresult: "0x80004005 (NS_ERROR_FAILURE)" location: "JS frame :: http://localhost/Library/dbfuncs.js :: sendQuery :: line 69" data: no]

This is all running on my PC using Wampserver

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I think Firefox might consider this a cross-site request if you are running your script on port 80 and sending a request to port 8080. Is that necessary? There is a mechanism for permitting such requests, as described in this article: HTTP access control (CORS) - MDN.

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I'm not trying to do a cross-site request. I've tried using

'http://Localhost:8080/Library/dbRequest.php/' and

'http://Localhost:80/Library/dbRequest.php/'

but I still get the same error.

If I leave out the 'http://Localhost:8080/ part I do get a cross-site error 8012.

It's very frustrating because I used to be able to do everything I want but now I can't.

Thanks for help.