NS_Error_Failure on Javascript POST
javascript
Solution
This error can be seen if there are,
- URL not found
- There is error in your server code or called URL.
There is not any visible problem in code you shared. Please refer this link
Problem
I am having trouble with some javascript. The code snippet below creates a simple post request however it always throws an `NS_Error_failure` exception (details at the bottom of the page). Can anyone tell me whats wrong with this code? ``` window.onload = function () { alert('0'); try { var url = "Some URL"; var request = CreateHttpRequest(); if (request) { alert('1'); request.open("POST", url, false); request.setRequestHeader("Content-type", "application/x-www-form-urlencoded"); alert('2'); request.send(''); alert('3'); } } catch (err) { alert(err); } } ``` ``` [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE)" nsresult: "0x80004005 (NS_ERROR_FAILURE)" location: "JS frame :: file:///C:/Users/Ben/Desktop/test.html :: <TOP_LEVEL> :: line 44" data: no] ```