457231 - java script error in file nsUrlClassifierLib.js

Status: RESOLVED DUPLICATE of bug 447648

(Firefox :: General, defect)

Description

[nimeshbhuva]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.2) Gecko/2008091620 Firefox/3.0.2
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.2) Gecko/2008091620 Firefox/3.0.2

I have set about:blank as my home page. When ever my page is blank and I clean the data at that time it shows me error in Error Console

key is null
file:///C:/Program%20Files/Mozilla%20Firefox/components/nsUrlClassifierLib.js
Line no: 1173.

The error prone method is 

PROT_UrlCryptoKeyManager.prototype.unUrlSafe

I have found work around by putting a condition in it.

//Original
PROT_UrlCryptoKeyManager.prototype.unUrlSafe = function(key)
{
	return key;
}

//Replaced Method
PROT_UrlCryptoKeyManager.prototype.unUrlSafe = function(key)
{
	if(key != null)
	{
		return key.replace("-", "+").replace("_", "/");
	}
	return key;
}


Reproducible: Always

Steps to Reproduce:
1. Set home page as about:blank
2. Open new tab or click on Home icon
3. Go to Tools > Clear Private Data
4. See the error console
Actual Results:  
The error in Error Console.

Expected Results:  
There should be any error.

Comment 1

[nimeshbhuva]

The replaced method is

PROT_UrlCryptoKeyManager.prototype.unUrlSafe = function(key)
{
	if(key == null)
	{
		return key;
	}
	return key.replace("-", "+").replace("_", "/");
}