To make Safari use the pac-file I have to reference it as file:///C:/proxy.pac (3 slashes at the beginning) which, according to Wikipedia is the correct format.
Recently we worked on several IE hang cases which have similar symptoms, let me share our finding and solution.
Symptoms
The following scripts provide examples of how a '.pac' file could be used to specify an auto-proxy URL. To use these functions, you must change the proxy names, port numbers, and IP addresses. Reference: Sample PAC File for Explicit Proxy The following is sample text that makes up a Proxy Automatic Configuration (PAC) file from which Web browsers receive routing instructions. The PAC file redirects all non-internal traffic to the Symantec Web Security Service.
Internet Explorer hangs for minutes before web page can be displayed.
'Both the standalone and bundled versions of Marvel Ultimate Alliance 2 feature all of its original DLC,” reads a statement from Activision. Activision has now broken its silence by deploying a PC patch, and by promising free DLC available in the “coming weeks”. Thank you for your continued patience as we address these issues.'
“We are still working on making the DLC for the first Marvel Ultimate Alliance available in the coming weeks as a free update for everyone who has purchased the title on these platforms alone or as part of the bundle. 'We're focused on identifying and fixing the issues that have been occurring.
The PAC File. The Proxy auto-config file format was originally designed by Netscape in 1996 for the Netscape Navigator 2.0 and is a text file that defines at least one JavaScript function, FindProxyForURL(url, host), with two arguments: url is the URL of the object and host is the host-name derived from that. Video Tutorial: ProxySG First Steps - Deploy an Explicit Proxy. Boith manually on a web browser and using a PAC file. 33 videos Play all Bluecoat Proxy Training James Kavanagh. After you edit the accelerated PAC file you can load it directly on the appliance; see Deploy the PAC File from the ProxySG Appliance. Alternatively, you can deploy PAC information in the following ways: Serve the PAC File from a Web Server - Upload the file to an internal web server, and then download the file to the appliance.
It happens on several internet web sites.
No issue if IE set proxy server directly instead of proxy Pac file
Troubleshooting
We collected network monitor trace and found it was doing lots of IPv6 DNS query before send http request out, see below.
In the netmon, it shows it has been taking over 10 seconds for query AAAA (IPv6) DNS record
141 09:36:43.5273510 100.100.100.220 100.100.100.63 DNS DNS:QueryId = 0xB36E, QUERY (Standard query), Query for www.test.com of type AAAA on class Internet 142 09:36:43.5634410 100.100.100.220 100.100.100.63 DNS DNS:QueryId = 0xB36E, QUERY (Standard query), Query for www.test.com of type AAAA on class Internet 143 09:36:43.6102870 100.100.100.220 100.100.100.63 DNS DNS:QueryId = 0xB36E, QUERY (Standard query), Query for www.test.com of type AAAA on class Internet 144 09:36:59.2616600 100.100.100.63 100.100.100.220 DNS DNS:QueryId = 0xB36E, QUERY (Standard query), Response - Server failure … … 205 09:36:47.6441450 100.100.100.220 100.100.100.63 DNS DNS:QueryId = 0xA737, QUERY (Standard query), Query for www.test.com of type AAAA on class Internet 206 09:36:47.7037970 100.100.100.220 100.100.100.63 DNS DNS:QueryId = 0xA737, QUERY (Standard query), Query for www.test.com of type AAAA on class Internet 207 09:36:47.7661270 100.100.100.220 100.100.100.63 DNS DNS:QueryId = 0xA737, QUERY (Standard query), Query for www.test.com of type AAAA on class Internet 610 09:36:59.2614460 100.100.100.63 100.100.100.220 DNS DNS:QueryId = 0xA737, QUERY (Standard query), Response - Server failure |
Internet Explore memory dumps were captured when reproduced the issue.
The dumps also show that thread is blocked waiting for threads that are in
turn waiting for a name resolution call to return.
Solution
Activar pdf architect fullerton. You will have to take care of some things. They have no minor information but good things. There are some plugin inside which many people need and some don’t required. When PDF Architect 6 Activation Key is being install in your system.
There are 3 ways to resolve this issue.
a. a. DNS
The slowness happens due to IPv6 DNS record query slow for www.test.com
web site as this site doesn’t have corresponding IPv6 address. Add corresponding
IPv6 mapping for web site in DNS server.
b. b. Proxy.Pac
KB315810 documents slow browsing with isInNet functions in the .pac file:
Browser Is Slow to Respond When You Use an Automatic Configuration Script
Modify pac file to use the dnsResolve function and save the resolved IP address
to a variable and pass this across to the isInNet function calls.
dnsResolve()
Resolves hostnames to an IP address. This function can be used to reduce the
number of DNS lookups, e.g. below example.
c. (Not Recommended) Disable IPv6
How to disable IP version 6 (IPv6) or its specific components in Windows 7,
in Windows Vista, in Windows Server 2008 R2, and in Windows Server 2008
How to install and uninstall IPv6 in Windows XP
Anik from DSI Team
Active4 months ago
I am writing a .pac file for use with iOS5 without jailbreak, but I feel trouble in matching the url starting with 'https' (eg: https://test.com).
Here is my script:
And if I matched 'https://test.com', how can I return 'https://123.123.123.123' to the URL?
3went2
3went23went2
2 Answers
This should not have been accepted. Please vote to delete if you can.
Original answer:
Pac File Example
You cannot proxy the HTTPS protocol without breaking end-to-end security, which is its single distinguishing feature. The reason your matches 'don't work' is that your PAC file is ignored for HTTPS.
Routing the traffic between the browser and an on-device proxy over HTTPS is also quite pointless, regardless of whether it is technically possible. I imagine it has been made impossible for security reasons (so that users cannot be fooled to think traffic is secure when it isn't) but I have not investigated.
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Use this:
if (shExpMatch(url, 'https:**'))
This should fix it.
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