356281 - Lag with automatic configuration proxy [isinNet()]

Status: RESOLVED DUPLICATE of bug 769764

(Firefox :: Settings UI, defect)

Description

[tiav42]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1) Gecko/20061003 Firefox/2.0
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1) Gecko/20061003 Firefox/2.0

When i set an automatic proxy configuration URL in Network Settings, i have got some big latence when i load a bad url and sometimes even with valid URL.

Here is my proxy.pac :

function FindProxyForURL(url, host)
{
    if ((isPlainHostName(host) ||
	 isInNet(host, "10.0.0.0", "255.0.0.0") ||
	 isInNet(host, "163.5.0.0", "255.255.0.0") ||
	 isInNet(host, "172.16.0.0", "255.255.0.0") ||
	 isInNet(host, "127.0.0.1", "255.0.0.0"))
	&& !isInNet(host, "163.5.254.25", "255.255.255.248")
	&& !isInNet(host, "163.5.254.16", "255.255.255.248")
	&& !isInNet(host, "163.5.69.0", "255.255.255.0")
	&& !isInNet(host, "163.5.254.0", "255.255.255.0")
	)
	return "DIRECT";
    else
	return "PROXY proxy-adm.epita.fr:3128";
}

This happens for all the students of my school who use the same settings than mine.

Reproducible: Always

Steps to Reproduce:
1. Configure an automatic proxy configuration URL
2. Type a wrong URL and press ENTER
3. Wait ..... till it times out

Actual Results:  
Lattence

Comment 1

[Seb]

I have the same bug with version 1.5 and 1.0

Comment 2

[roberjruiz]

I can confirm this. Even more. During that lag, normally I can't do anything with the browser, and many times I must close it.

The problem is in the command isInNet. I thnik it happens when I ask for an URL with a long ping time, or when IP cannot be retrieved.

If IP cannot be retrieved (unknown host if I ping to it), navigator uses a lot of time in sentences like:

  if (isInNet(host, "10.34.32.228", "255.255.255.255") {
    .....
  }

If I delete al sentences that chek host ip, then there is no lag

Comment 3

[Neil Lofland]

This is a duplicate of bug 235853. https://bugzilla.mozilla.org/show_bug.cgi?id=235853
Go add your votes to 235853, it is driving me crazy.

Comment 4

[benc]

NEW.

Comment 5

[RNicoletto]

This is a duplicate of bug 208287.