Web Browsers





Web browsers are applications used primarily to display documents, files and media from the Internet, identified by a Uniform Resource Identifier (URI) that can be a page, image, video or other file. Some browsers require the use of add-ons or extensions to safely render the information they receive; others have systems built into them to perform the same functions.

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Hi Experts

I am working on a wagtail project(like django-cms) I get this error when I run python3 manage.py runserver

code 400, message Bad request syntax 
  You're accessing the development server over HTTPS, but it only supports 

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I had changed SECURE_SSL_REDIRECT=FALSE and tested it still i get this same error. I had disabled cache in chrome.

 I had deactivated chorme caching in registry  by following steps.
Deactivate Chrome Cache in the Registry

Open Registry (Start -> Command -> Regedit)

Search for: HKEY_CLASSES_ROOT\ChromeHTML\shell\open\command

Change the part after ...chrom.exe" to this value: –disable-application- cache –media-cache-size=1 –disk-cache-size=1 — "%1"

Example: "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" - disable-application-cache –media-cache-size=1 –disk-cache-size=1 — "%1"

I had also tried disable cache from chrome developer tools network -disable cache.

I had also tried by clearing cache from hsts on chrome.

I had also tried from incognito window on chrome. But still I get the same error

It is an Ubuntu machine on AWS(accessed by putty from windows pc).

I access from outside (windows pc - local pc )through http://54.23x.9x.17:8000 I am not able to resolve this error.

I had tried on some other machine.  I got the following error on console for Linux Ubuntu

it is changing to https instead of http and I got "GET / HTTP/1.1" 301 0 on console window

Please help me in resolving this error.

With Many Thanks, Bharath AK
Free Tool: IP Lookup
LVL 12
Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

When I run my app and if I used Edge as browser, the button is enabled when it shouldn't be. It works well (displays disabled)when I use IE11, Chrome.
Does anyone know of this issue and what did you do to resolve it.?
The version of edge is 41.16299 and Microsoft EdgeHTML is 16.16299.
Trying to print to a local printer using Citrix on a Chrome box
I have a vendor that always sends me links to the wrong Salesforce URL.
Each time, I have to find the correct URL and enter that into my browser, which wastes my time.
Is there a way to set up a local redirect (through hosts file or something) so that


will go to:


It's not a big deal, but it's a nuisance.

A customer brought in a macbook pro laptop and when she attempts to go to her online bank account she gets an error message, "Safari can't open the page "https://www.bankfirstfs.com/" because Safari can't establish a secure connection to the server "www.bankfirstfs.com"

   she can open any other web page she wants and I went on my computer and went right to the website no problem.  

I reset safari (all boxes checkmarked) but that did no good.

What do I need to do to make it work?
I am working on a project on Angular 5. I have as of now just created the templates and nothing else is written in the code, but when I am serving it on the chrome it just crashes the chrome. There are no errors since I have not changed the code at all in the templates generated and the templates were generated using ng g c name --spec false. Some of the components are nested as well but that shouldn't be the problem. This is what it looks like..

Insecure connection warning in Internet Explorer and Chrome. Both are the latest version and we have all of Windows updates installed. IE sometimes allows to proceed through the warning as insecure connection while Chrome does not. IE also displays sometimes information about not being able to find revocation certificate information for that website while Chrome does not do that. Even though both browsers display those insecure connection warnings, the website addresses are https;//. Weirdly, we had this problem in Chrome on Friday, then opened IE to check if that will work and it opened fine without warning. We have BitDefender antivirus installed. The issue occurs on few computers, Windows 7 Pro x64 and Windows 10 Pro x64. All computers are Dell OptiPlex.
We are trying to use Google Chrome in --app mode  launching a specific website, however the right-click menu is accessible.  What is the process (command line or other setting) to disable the right-click menu?  We have also tried the --kiosk mode, that stops from utilizing the right-click method, however the right-click toolbar shortcuts are still functioning (ie. Ctrl+T - open new browser window).

What is the process to disable the Google  Chrome right-click toolbar feature when using --app, and what is the process to disable the right-click toolbar shortcut keys when utilizing --kiosk mode?

Any suggestions or assistance would be greatly appreciated and rewarded!
google chrome

how can I edit the auto fill

I spelled my username incorrectly and now it is saved

Regarding SSRS datepicker. It is not showing/working in google chrome. Is there any way I can try to make it work? Can I use class or Id to make it as datepicker using jquery? Any suggestion.

Free Tool: SSL Checker
LVL 12
Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

I need to stay at a certain version in Firefox because of a certain application. I need to stay on version 51. I disable updates but it still updates on its own. Very frustrating because once it updates,our helpdesk gets flooded with calls once the application stops working. From Google searches I see that many others have the same problem. Is there a solution for this?
Need to disable browsing on Windows server 2003/2008. Any GPO with computer configuration ??
My question is about one specific reason to use max-age over Expires.

See for example: https://www.mnot.net/cache_docs/#EXPIRES
Although the Expires header is useful, it has some limitations. First, because there’s a date involved, the clocks on the Web server and the cache must be synchronised; if they have a different idea of the time, the intended results won’t be achieved, and caches might wrongly consider stale content as fresh.

But with max-age you also have the exact same problem, right? In my opinion there are 2 possibilities:

1. A cache receives a response from a server. The cache's clock starts counting from that moment. If there would be a delay between the server sending the response, and the cache receiving the response, then the age would be incorrect. So this is not a good way to calculate the age.

2. A cache receives a response from a server. The age of the response is calculated as a difference between the cache's current date and the Date general header included in the HTTP response.

Case 2 is in my opinion the right way to calculate the age of the response. But the reponse header field "Date" will be determined by the server. Just like "Expires" will be determined by the server. So in both cases the server's clock will be compared with the cache's clock. So in this respect (clock synchronization), I see no difference between max-age and Expires?

With case 1 they would be right, because then the cache's clock on moment A …
I received a call from one of the offices I support with the following problem:
Unable to print receipts and emails from our remote desktop session:
Turns out they are using Chrome V65.0.3325.146 to access these application sites.
In the application they have links to print the receipts, emails, statements, etc.
I had them right click on the display in one of the sites and select print and it printed the web page successfully.
I also had them print from applications installed on the remote desktop to the same printer successfully.
I had them log into the web sites on their local computer where they also use Chrome and all of the printing worked fine.
I then had them check the Chrome version on their local workstation and they had version 64.0.3282.186.
While they were looking at the version it displayed there is a new version of Chrome and it is currently being updated.
It completed the update and required them to re-launch Chrome.
The version of Chrome now reflects 65.0.3325.146 - Same as the Remote Desktop Server
Once re-launched I had them try the printing again from the different sites and sure enough the printing failed in the same way as it does on the remote desktop server.

It appears there is no way to roll back Chrome to an earlier version so this is an inconvenience that needs a fix.

Has anyone else experienced this and found a fix. Could it be a plugin... Java or Adobe that is not working with this version of Chrome?
Issue with internet explorer 11 loading activex related components. Worked last week, and now our internal/external applications are not loading. Nothing has changed in our systems either. Specifically, the error is "this webpage wants to run "LEADTOOLS main active x control, which isn't compatible with internet explorers enhanced security features. If you trust this site, you can disable enhanced protected mode for this site and allow the control to run".

Has anyone come across this issue? First off we do not have enhanced security features enabled.

Any help would be appreciated.
When a stored response is used to satisfy a request without validation, my browser is not showing me the HTTP reponse header field: "Age"?

Just take a simple test.html file, which is chacheable by default. Now visit the page 2 times, so the second time the file is shown directly from cache without validation.

Firefox shows me response headers like this:

Date: Mon, 12 Mar 2018 16:05:18 GMT
Server: Apache/2.4.17 (Unix) OpenSSL/1.0.1e-fips PHP/5.6.16
Last-Modified: Mon, 12 Mar 2018 12:24:12 GMT
Accept-Ranges: bytes
Content-Length: 143
Content-Type: text/html

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But why Firefox does not show me the "Age" header field?

See: https://tools.ietf.org/html/rfc7234

When a stored response is used to satisfy a request without validation, a cache MUST generate an Age header field

And see: https://tools.ietf.org/html/rfc7234#section-5.1

However, lack of an Age header field does not imply the origin was contacted, since the response might have been received from an HTTP/1.0 cache that does not implement Age.

A browser's cache is not HTTP/1.0, so the response headers must contain an Age header field. Firefox is not showing me "Age"?

Are browsers only showing the response and request headers of the server? But if that's the case then they had to show no response headers at all, because there was no response from server in case of "200 OK (cached)"?

So I don't understand this? What's the logic behind this?

P.S. The example was about Firefox, but for example Chrome is doing the same.
I have a page that will work on Chrome but on Firefox it dies and I get the message that the script has stop responding:

Script: chrome://global/content/bindings/text.xml:36  

What's this about

i posted this on the 12th and haven't heard anything
How to intercept websites JavaScript in Chrome... basically I want to prevent JavaScript links that open in a new window on all or specific websites. Because usually these types of links are spam.

There are extensions for Chrome which allow you to inject JavaScript (like "Custom JavaScript for websites"), but is it possible?
I want to use google chrome to visit my website each page of the resources directory to check the files  they are in a numerical order.  

format is htttp://domainname.com/resources/1000/download

There is about 1800 files.


So is there a way to get chrome to visit each page and do it at a pace like 20 secs delay.
Free Tool: Port Scanner
LVL 12
Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

How Can I make secure connection (https) with Windows 10 to a router/firewall to not have an error " Code: INET_E_RESOURCE_NOT_FOUND" ?

It all started when I tried to install Sonic Wall TZ series SSLVPN , or (GVC) client for a windows 10 computers. I then noticed I only can use http:// <ip> to connect to sonicwall  TZ series and not HTTPS. If I can not run and connect https:\\<ip> to connect to the sonicwall TZ then I would not be able to install SSLVPN client either.

I even downloaded the SSLVPN client with windows 7 and take it to installed it on windows 10 and I got  up to the login prompt but then it fails and it does not connect.

To summarize my question; Windows 10 browsers seems (Any one, Edge, IE, Chrome, etc. )  not connect secure (port 443) to a device that has expired certificate.
I tried GVC version GVCSetup64_4.9.4.0306_EN.exe that someone recommended for windows 10 and after I typed user name and password it failed through authentication ,   it failed too and the log file showed this entry (An incoming ISAKMP packet from <IP> was ignored.)

Can anyone suggest a work around please?
Reponse headers can contain something like:

Cache-Control: must-revalidate

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But "must-revalidate" does not exist for the request headers, see:


Why? Is there a reason behind this?

Take for example me, my browser, my browser's cache and the origin server. Let's say there is a stale cached copy in the browser's cache. Imagine I don't want the cached copy to be served without making any request to the server. Also not if the cache is disconnected from the origin server. I could add must-revalidate in the request headers, but this only exists for the response headers in similar situations.

Why is that and what's behind it? Directives like max-age, no-cache, no-store you have for the response AND the request directives, so why must-revalidate is an exception to that?
I'm using Chrome Enterprise Bundle 64 bit in several RDS servers 2008 R2 and 2012 R2, and we have high CPU usage in all cases.
My organization email open easily by internet explorer and Microsoft edge  
example, url:  mail.domain.com but in google chrome it can not open util write https,
its erorrs:

You don't have authorization to view this page.
Copying and pasting from web browser (I.E 11 or Chrome) crashes Word 2016.   If a known fix is available that's great if not,  A work around to grabbing info off a website and creating word document.


Go Raps!
The attached  javascript code works on W3Schools using a  Windows browser  but not on Mac Chrome or Safari browser. I started by using the Try it example for the slice operator. I inserted some code from a routine that returns CST from (Central Standard Time). It works when I do the exercise inside w3schools on a Windows browser. When I repeat the same process using w3schools on a Mac Chrome browser it doesn't. It complains when encountering the slice operator.
<!DOCTYPE html>

<p>Click the button to extract the second and the third elements from the array.</p>

<button onclick="myFunction()">Try it</button>

<p id="demo"></p>

function myFunction() {
            var x = new Date();
            var c = x.toString();
            var tz = " ";
            if (c.indexOf("(") > 0) {
                var e = c.slice(c.indexOf("(") + 1, c.indexOf(")"));
                var f = e.split(' ');
                f[0] = f[0].slice(0, 1);
                f[1] = f[1].slice(0, 1);
                f[2] = f[2].slice(0, 1);
                tz = f[0] + f[1] + f[2];
            } else {
                var f = c.split(' ');
                tz = f[4];
    document.getElementById("demo").innerHTML = tz;


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Web Browsers





Web browsers are applications used primarily to display documents, files and media from the Internet, identified by a Uniform Resource Identifier (URI) that can be a page, image, video or other file. Some browsers require the use of add-ons or extensions to safely render the information they receive; others have systems built into them to perform the same functions.