I am using postman to test an API I have, all is good when the request does not contain sub-domain, however when I add a sub-domain to URL I am getting this response.
Could not get any response
There was an error connecting to http://subdomain.localhost:port/api/
Why this might have happened:
The server couldn't send a response:Ensure that the backend is working
properly
Self-signed SSL certificates are being blocked:Fix this by turning off
'SSL certificate verification' in Settings > General
Proxy configured incorrectly Ensure that proxy is configured correctly
in Settings > Proxy
Request timeout:Change request timeout in Settings > General
If I copy the same URL from postman and paste it into the browser I get a proper response, is there some kind of configurations I should do to make postman work with sub-domains?
First Go to Settings in Postman:
Off the SSL certificate verification in General Tab:
Off the Global Proxy Configuration and Use System Proxy in Proxy Tab:
Make Request Timeout to 0 (Zero)
Configure Apache:
If the above changes resulted in a 404 response, then continue reading ;-)
Users that host their site locally (like with XAMP and/or WAMP), may be able to visit their virtual sites using https:// prefixed address, but it's a lie, and to really enable SSL (for each virtual-site), configure Apache like:
Open httpd-vhosts.conf file (from Apache's conf/extras directory), in your preferred text editor.
Change the virtual site's settings, into something like:
<VirtualHost *:80 *:443>
ServerName my-site.local
ServerAlias *.my-site.local
DocumentRoot "C:\xampp\htdocs\my-project\public"
SSLEngine on
SSLCertificateFile "path/to/my-generated.cert"
SSLCertificateKeyFile "path/to/my-generated.key"
SetEnv APPLICATION_ENV "development"
<Directory "C:\xampp\htdocs\my-project\public">
Options Indexes FollowSymLinks
AllowOverride All
Order allow, deny
Allow from all
</Directory>
</VirtualHost>
But of course, generate a dummy-SSL-certificate, and change all file paths, like from "path/to/my-generated.cert" into real file addresses.
Finally, test by visiting the local site in the browser, but using http:// (without S) prefixed address; Apache should now give error like:
Bad Request
Your browser sent a request that this server could not understand.
Reason: You're speaking plain HTTP to an SSL-enabled server port.
Instead use the HTTPS scheme to access this URL, please.
I had the same issue. It was caused by a newline at the end of the "Authorization" header's value, which I had set manually by copy-pasting the bearer token (which accidentally contained the newline at its end)
If you get a "Could not get any response" message from Postman native apps while sending your request, open Postman Console (View > Show Postman Console), resend the request and check for any error logs in the console.
Thanks to numaanashraf
Hi This issue is resolved for me.
setting ->general -> Requesttimeout in ms = 0
If all above methods doesn't work check your environment variables, And make sure that the following environments are not set. If those are set and not needed by any other application remove them.
HTTP_PROXY
HTTPS_PROXY
Reference link
For me it was the http://localhost instead of https://localhost.
When getting the following error,
you need to do the following.
Step 1:
In Postman, click the wrench icon, go to settings, then go to the Proxy tab.
Step 2:
Create a custom Proxy. This article explains how to create a custom proxy.
After you create the custom Proxy, make sure you turn the Proxy toggle button to off. I put 61095 in for the proxy server and it worked for me.
Step 3 :
Success
I came up with this solution
In postman go to setting --> proxy
And off Global Proxy Configuration
on the Use System Proxy
And go to windows host configure file
'C:\Windows\System32\drivers\etc\hosts'
Open that file in administrator mode
And add the sub domain to hosts file
For me what worked was to add 127.0.0.1 subdomain.localhost to my host file. On OSX that was /etc/hosts. Not sure why that was necessary as I could reach the subdomain from chrome.
In postman go to setting --> proxy
And off Global Proxy Configuration
For me, it was that route that I was calling in my node server wasn't returning anything. Adding
return res.status(200).json({
message: 'success!',
response: 'success!'
});//
to the route I was calling resolved the issue.
You mentioned you are using a CER certificate.
According to the Postman page on certificates.
Choose your client certificate file in the CRT file field. Currently, we only support the CRT format. Support for other formats (like PFX) will come soon.
The name of the extension CER, CRT doesn't make the certificate that type of certificate but, these are the excepted extensions names.
CER is an X.509 certificate in binary form, DER encoded.
CRT is a binary X.509 certificate, encapsulated in text (base-64) encoding.
You can use OpenSSL to change a CER file into a CRT file. I have not had good luck with it but it looks like this.
openssl x509 -inform PEM -in certificate.cer -out certificate.crt
or
openssl x509 -inform DER -in certificate.cer -out certificate.crt
Postman for Linux Version 6.7.1 - Ubuntu 18.04 - linux 4.15.0-43-generic / x64
I had the same problem and by chance I replaced http://localhost with http://127.0.0.1 and everything worked.
My etc/hosts had the proper entries for localhost and https://localhost requests always worked as expected.
I have no clue why changing localhost for http with 127.0.0.1 solved the issue.
None of these solutions works for me. Postman is not sending any request to the server because postman is not finding the host. So, if you modify your /etc/hosts to
127.0.0.1 localhost
127.0.0.1 subdomain.localhost
It works for me.
For me the issue was that the Content-Length was too big. I placed the content of the body in NotePad++ and counted the characters and put that figure in PostMan and then it worked.
I know it does not directly answer why the op's sub-domain was not working but it might help out someone.
In my case it was invisible spaces that postman didn't recognize, the above string of text renders as without spaces in postman.
I disabled SSL certificate Validation and System Proxy even tried on postman chrome extension(which is about to be deprecated), but when I downloaded and tried Insomnia and it gave those red dots in the place where those spaces were, must have gotten there during copy/paste
For anyone who experienced this issue with real domain instead of localhost and couldn't solve it using ANY OF THE ABOVE solutions.
Try changing your Network DNS (WIFI or LAN) to some other DNS. For me, I used Google DNS 8.8.8.8, 8.8.4.4 and it worked!
solution is very simple if you are using asp.net core 2 application . Inside ConfigureServices method inside startup.cs file all this line
services.AddMvc()
.SetCompatibilityVersion(CompatibilityVersion.Version_2_1)
.AddJsonOptions(x => x.SerializerSettings.ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore);
You just need to turn SSL off to send your request.
Proxy and others come with various errors.
My issue was by putting wrong parameters in the header,
the requested parameters was
Authorization: Token <string>
and is was trying
Authorization Token: <string>
After all the above methods like turning OFF SSL certificate verification, turning ON only Use System Proxy and removing HTTP_PROXY and HTTPS_PROXY system environment variables, it worked.
Note: Had to restart the Postman app, since the environment variables were changed.
Unchecking proxy and SSL Certificate Verification didn't work for me.
Unsetting PROXY environment variables did the trick.
export http_proxy=
export ftp_proxy=
export https_proxy=
Change to the directory where Postman is installed and then:
./Postman
In my case, MVC wasn't able to serialize the results (I accidentally used a model instead of DTO). I debugged down to passing a simple string, which worked. Once I fixed the serialization it all came up.
In my case the (corporate) proxy was using a self-signed SSL certificate which Postman disliked. I discovered it by activating
View->Show Postman console
and retrying the request. The console then showed the certificate error. In
Settings->General
I disabled
SSL certificate verification.
The solution for me, as I'm using the deprecated Postman extension for Chrome, to solve this issue I had to:
Call some GET request using the Chrome Browser itself.
Wait for the error page "Your connection is not private" to appear.
Click on ADVANCED and then proceed to [url] (unsafe) link.
After this, requests through the extension itself should work.
In my case it was a misconfigured subnet. Only one of the 2 subnets in the ELB worked.
I figured this out by doing a nslookup and trying to curl the returned IPs directly. Only one worked.
Postman just kept using the misconfigured one.
I had the same issue.
Turned out my timeout was set too low. I changed it to 30ms thinking it was 30sec. I set it back to 0 and it started working again.
I got the same "Could not get any response" issue because of wrong parameter in header. I fixed it by removing parameter HOST out of header.
PS: Unfortunately, I was pushed to install the other software to get this information. It should be great to get this error message from Postman instead of getting general nonsense.
In my case, I forgot to set the value of the variable in the "CURRENT VALUE" field.
I just experienced this error. In my case, the path was TOO LONG. So url like that gave me this error in postman (fake example)
http://127.0.0.1:5000/api/batch/upload_import_deactivate_from_ready_folder
whereas
http://127.0.0.1:5000/api/batch/upld_impt_deac_ready_folder
worked fine.
Hope it helps someone who by accident read that far...
I'm using Postman to test my API.
It works fine in dev env as I'm calling my server in http.
However on the acceptance testing platform, the server is in https and we are using self signed certificat.
When I try to make the call via Postman I get "Could not get any response" and it's written underneath that SSL connections are being blocked, with a link to this page.
However as notified in the comment, this does not work anymore for self signed ceritifcate and the latest chrome release.
For info, I'm using Version 59.0.3071.115 (Build officiel) (64 bits)
When I go into google settings, then certificates : chrome://settings/certificates
And I try to import an authority certificat, I get an error popin that says that my authority is not a certificat authority and it won't allow me to import it.
As I'm on linux, I tried to do what is detailed there : https://superuser.com/questions/1201552/not-a-certification-authority-while-importing-self-signed-certificate
But even though I see my certificat when I call
certutil -d sql:$HOME/.pki/nssdb -L
It still won't allow me to import it in google.
So how can one use self signed certificat under linux with Postman ?
EDIT : I was using the version from Chrome web store which is lacking SSL support. Downloaded the standalone and as #Pratik Mandrekar wrote it works fine!
You can disable SSL certificate verification in Postman. Settings->SSL certificate verification as shown below.
How to fill JMeter's WebSocket Sampler fields correctly to execute a minimal wss-request?
If I fill just server name (path) and then execute test, everything is fine.
But if I add some data to 'Request data' field there is an undefined error.
Where should the JSON-data be placed?
Thanks.
Screens are added.
Cannot connect to the remote server
I would assume that either server is down or your connection details are incorrect, i.e. my expectation is that for wss protocol you should be using port 443.
You can also add the next line to user.properties file to enable debugging output to the jmeter.log file
log_level.JMeter.plugins.functional.samplers.websocket=DEBUG
See WebSocket Testing With Apache JMeter article for more information on conducting Websocket load testing using JMeter
You might consider using this JMeter websocket plugin:
https://bitbucket.org/pjtr/jmeter-websocket-samplers
Add a "WebSocket resquest-response sampler" to your test plan, add the json as "request data" and off you go.
I am trying to enable push notifications on my website using VAPID keys.
When i include the gcm_sender_id and remove the applicationServerKey from the pushManager.subscribe method, it runs fine.
Only when i enable VAPID keys and remove the gcm_sender_id from manifest.json file. i get the foloowing error.
DOMException: Registration failed - push service error
I am using Chrome browser.
I encountered this error in Brave browser. By default, Google Services for push messaging are disabled in Brave. To enable this, open the following URL in brave:
brave://settings/privacy
After this, enable the flag "Use Google services for push messaging":
Source:
https://github.com/firebase/firebase-js-sdk/issues/3195#issuecomment-848036637
The applicationServerKey that i was using in the pushManager.subscribe method was somehow incorrect.
It worked when i regenerated the keys in node using the following module.
const webpush = require('web-push');
const vapidKeys = webpush.generateVAPIDKeys()
In my case,I was trying to run firebase messaging on a flutter web.
My Browser was BRAVE.
It always failed with an exception of firebase fcm registration push servic error.
I followed #Nicodemuz answer, but it didn't solve the issue. I get the same error.
The only solution was setting Google chrome as my executable.
Anyhow the issue is not with firebase or flutter, it's with the brave browser itself.