Went through several articles but cannot figure out why the browser caching isnt working. I am using prerender.io as well as SSL:
gzip on;
gzip_min_length 500;
gzip_proxied any;
gzip_comp_level 4;
gzip_types text/css text/javascript text/xml text/plain text/x-component application/javascript application/json application/xml application/rss+xml font/truetype font/opentype application/vnd.ms-fontobject image/svg+xml;
gzip_vary on;
gzip_disable "msie6";
server {
listen 8080 default_server;
listen [::]:8080 default_server;
server_name <servername> www.<servername>.com;
return 301 https://$server_name$request_uri;
}
server {
listen 443 ssl http2 default_server;
server_name <servername> www.<servername>.com;
ssl_certificate /etc/pki/tls/private/<servername>.com.chained.crt;
ssl_certificate_key /etc/pki/tls/private/private.key;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_ciphers <ssl_ciphers_code>
ssl_session_cache shared:SSL:5m;
ssl_session_timeout 1h;
add_header Strict-Transport-Security "max-age=15768000" always;
root /var/app/current;
location / {
proxy_set_header X-Prerender-Token iKJwgCElYIfxtt9u99Zg;
set $prerender 0;
if ($http_user_agent ~* "baiduspider|twitterbot|facebookexternalhit|rogerbot|linkedinbot|embedly|quora link preview|showyoubot|outbrain|pinterest|slackbot|vkShare|W3C_Validator") {
set $prerender 1;
}
if ($args ~ "_escaped_fragment_") {
set $prerender 1;
}
if ($http_user_agent ~ "Prerender") {
set $prerender 0;
}
if ($uri ~* "\.(js|css|xml|less|png|jpg|jpeg|gif|pdf|doc|txt|ico|rss|zip|mp3|rar|exe|wmv|doc|avi|ppt|mpg|mpeg|tif|wav|mov|psd|ai|xls|mp4|m4a|swf|dat|dmg|iso|flv|m4v|torrent|ttf|woff|svg|eot)") {
set $prerender 0;
}
#resolve using Google's DNS server to force DNS resolution and prevent caching of IPs
resolver 8.8.8.8;
if ($prerender = 1) {
#setting prerender as a variable forces DNS resolution since nginx caches IPs and doesnt play well with load balancing
set $prerender "service.prerender.io";
rewrite .* /$scheme://$host$request_uri? break;
proxy_pass http://$prerender;
}
# Proxy_pass configuration
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_set_header X-NginX-Proxy true;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_max_temp_file_size 0;
proxy_pass http://0.0.0.0:3000;
proxy_redirect off;
proxy_read_timeout 240s;
}
location ~* \.(ico|css|js|gif|jpeg|jpg|png|woff|ttf|otf|svg|woff2|eot)$ {
root /var/app/current/app/dist/client/; #if i comment this out it, my css and js files are not found...
expires 30d;
access_log off;
log_not_found off;
add_header Pragma "public";
add_header Cache-Control "public";
}
# Increase http2 max sizes
http2_max_field_size 64k;
http2_max_header_size 64k;
client_max_body_size 4G;
keepalive_timeout 10;
}
My assets dir is as follows:
JS: /var/app/current/app/dist/client/js
CSS: /var/app/current/app/dist/client/assets/css
Images: /var/app/current/app/dist/client/assets/graphics
Fonts: /var/app/current/app/dist/client/assets/fonts
Videos: /var/app/current/app/dist/client/assets/videos
UPDATED CONFIG:
gzip on;
gzip_min_length 500;
gzip_proxied any;
gzip_comp_level 4;
gzip_types text/css text/javascript text/xml text/plain text/x-component application/javascript application/json application/xml application/rss+xml font/truetype font/opentype application/vnd.ms-fontobject image/svg+xml;
gzip_vary on;
gzip_disable "msie6";
server {
listen 8080 default_server;
listen [::]:8080 default_server;
server_name <servername.com> <www.servername.com>;
return 301 https://$server_name$request_uri;
}
server {
listen 443 ssl http2 default_server;
server_name <servername.com> <www.servername.com>;
ssl_certificate /etc/pki/tls/private/<servername>.com.chained.crt;
ssl_certificate_key /etc/pki/tls/private/private.key;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_ciphers <ciphers>;
ssl_session_cache shared:SSL:5m;
ssl_session_timeout 1h;
add_header Strict-Transport-Security "max-age=15768000" always;
root /var/app/current;
location / {
proxy_set_header X-Prerender-Token <token> ;
set $prerender 0;
if ($http_user_agent ~* "developers\.google\.com|googlebot|gigabot|yeti|yandex|ia_archiver|baiduspider|twitterbot|facebookexternalhit|rogerbot|linkedinbot|embedly|quora link preview|showyoubot|outbrain|pinterest|slackbot|vkShare|W3C_Validator") {
set $prerender 1;
}
if ($args ~ "_escaped_fragment_") {
set $prerender 1;
}
if ($http_user_agent ~ "Prerender") {
set $prerender 0;
}
if ($uri ~* "\.(js|css|xml|less|png|jpg|jpeg|gif|pdf|doc|txt|ico|rss|zip|mp3|rar|exe|wmv|doc|avi|ppt|mpg|mpeg|tif|wav|mov|psd|ai|xls|mp4|m4a|swf|dat|dmg|iso|flv|m4v|torrent|ttf|woff|svg|eot)") {
set $prerender 0;
}
#resolve using Google's DNS server to force DNS resolution and prevent caching of IPs
resolver 8.8.8.8;
if ($prerender = 1) {
#setting prerender as a variable forces DNS resolution since nginx caches IPs and doesnt play well with load balancing
set $prerender "service.prerender.io";
rewrite .* /$scheme://$host$request_uri? break;
proxy_pass http://$prerender;
}
# Proxy_pass configuration
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_set_header X-NginX-Proxy true;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_max_temp_file_size 0;
proxy_pass http://0.0.0.0:3000;
proxy_redirect off;
proxy_read_timeout 240s;
}
location ~* \.(ico|css|js|gif|jpeg|jpg|png|woff|ttf|otf|svg|woff2|eot)$ {
root /var/app/current/app/dist/client/; #if i comment this out it, my css and js files are not found...
expires 30d;
access_log off;
log_not_found off;
add_header Pragma "public";
add_header Cache-Control "public";
}
location /assets/graphics/ {
proxy_ignore_headers Cache-Control;
proxy_cache_valid any 30d;
}
# Increase http2 max sizes
proxy_buffers 8 16k;
proxy_buffer_size 32k;
http2_max_field_size 64k;
http2_max_header_size 64k;
client_max_body_size 4G;
keepalive_timeout 10;
}
In your NGINX configuration, you set the cache expiration to 30 days for your images with the line:
expires 30d;
However looking at your images coming from your server, the max-age of the images is set to 0 which is causing your browser to re-pull the images on a refresh (below image was after a refresh):
I suspect that NGINX is acting as a proxy to an origin server that is part of your solution. This origin server is setting the max-age to 0 in the cache-control header and NGINX is respecting that setting.
Per the NGINX caching guide:
By default, NGINX respects the Cache-Control headers from origin servers. It does not cache responses with Cache-Control set to Private, No-Cache, or No-Store or with Set-Cookie in the response header. NGINX only caches GET and HEAD client requests.
To override the cache-control set at the origin server and set the max-age to 30d, use the NGINX proxy_ignore_headers and proxy_cache_valid directive like so:
...
location /assets/graphics/ {
proxy_ignore_headers Cache-Control;
proxy_cache_valid any 30d;
...
}
...
The code in my solution is taken directly from the NGINX caching guide and modified to your configuration.
Or determine how to change the cache control headers at the origin server.
UPDATE
After you updated your NGINX config, your images in the /assets/graphics/ directory are pulled from local browser memory and have expiration of 30 days (2595200) as seen below. Yesterday, they were all being pulled from your server and not being cached. This solution solves your problem. For the rest of the assets that you want cached, you need to further change your config to also cache these according to your requirements.
Related
Local caching works fine, however trying to cache files server by the Azure Blob Storage is not working.
Each request the Signature changes and it returns no caching headers.
I think its because of this signature at the end? Anyone got an idea how to surpass that?
https://accountname.blob.core.windows.net/static/assets/js/jquery331.min.js?se=2020-02-10T15%3A06%3A35Z&sp=r&sv=2019-09-28&sr=b&sig=<Signature>
Below is my nginx config. It mostly based on this one = https://serversforhackers.com/c/nginx-caching
upstream app {
server web:8000;
}
proxy_cache_path ./cache keys_zone=one:10m loader_threshold=300 loader_files=200;
proxy_cache_key "$scheme$request_method$host$request_uri";
# Expires map
map $sent_http_content_type $expires {
default off;
text/css max;
application/javascript max;
~image/ max;
}
server {
include mime.types;
listen 80;
listen [::]:80;
root /usr/src/application/;
index /usr/src/application/main/;
gzip on;
gzip_comp_level 2;
gzip_http_version 1.0;
gzip_proxied any;
gzip_min_length 1100;
gzip_buffers 16 8k;
gzip_types text/plain text/html text/css application/x-javascript text/xml application/xml application/xml+rss text/javascript application/javascript script text/script;
gzip_disable "MSIE [1-6].(?!.*SV1)";
gzip_vary on;
location / {
proxy_pass http://app;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $host;
proxy_redirect off;
}
location /staticfiles/ {
proxy_cache one;
proxy_buffering on;
add_header X-Proxy-Cache $upstream_cache_status;
proxy_http_version 1.1;
proxy_set_header Connection "";
proxy_set_header Authorization '';
proxy_set_header Host https://accountname.blob.core.windows.net/static;
proxy_pass https://accountname.blob.core.windows.net;
}
location /media/ {
proxy_http_version 1.1;
proxy_set_header Connection "";
proxy_set_header Authorization '';
proxy_set_header Host https://accountname.blob.core.windows.net/media;
proxy_pass https://accountname.blob.core.windows.net;
}
# cache.appcache, your document html and data
location ~* \.(?:manifest|appcache|html?|xml|json)$ {
expires -1;
}
# Feed
location ~* \.(?:rss|atom)$ {
expires 1h;
add_header Cache-Control "public";
}
# Media: images, icons, video, audio, HTC
location ~* \.(?:jpg|jpeg|gif|png|ico|cur|gz|svg|svgz|mp4|ogg|ogv|webm|htc)$ {
expires 1M;
access_log off;
add_header Cache-Control "public";
}
# CSS and Javascript
location ~* \.(?:css|js)$ {
expires 1y;
access_log off;
add_header Cache-Control "public";
}
location /media/ {
alias /usr/src/application/main/media;
}
proxy_connect_timeout 300s;
proxy_read_timeout 300s;
proxy_next_upstream error timeout http_502;
location /index/ {
alias /usr/src/application/main/;
}
}
So I've found what caused the query strings. We are using django storages, in that the option for a variable AZURE_URL_EXPIRATION_SECS is possible which appends a query string.
As of now caching works without CDN. However, I am surprised that with the CDN active and rules set to ignore query strings no caching was happening.
I am running NGINX on an Ubuntu 18.04 x64 Digital Ocean server. I have a Cherrypy app running directly on the Ubuntu server. I am trying to use NGINX to proxy_pass to my Cherrypy app for a specific route. The proxy_pass appears to be working, but I am getting a 403 Forbidden error when I try to POST to the route. The Cherrypy route works with the Python requests POST request when I test it locally, but doesn't work when I send the request through NGINX with the proxy_pass.
Cherrypy is in a Pipenv virtual environment. To run it I run Python3 app.py.
Here's the error in the NGINX error log:
2019/10/17 20:51:50 [error] 29574#29574: *51 directory index of "/mnt/media_storage/media_root/media/monday/monday-file-upload/" is forbidden, client: 73.14.140.118, server: media.bscs.org, request: "GET /monday/monday-file-upload/ HTTP/1.1", host: "media.bscs.org"
Here's my NGINX config:
# Microcaching
proxy_cache_path /tmp/cache keys_zone=cache:10m levels=1:2 inactive=600s max_size=100m;
# Cache in browser
# Expires map
map $sent_http_content_type $expires {
default off;
text/html epoch;
text/css 30d;
application/javascript 30d;
~image/ 30d;
}
upstream apps {
server 127.0.0.1:8080;
}
server {
listen 80;
listen [::]:80;
server_name media.bscs.org;
rewrite ^/(.*) https://media.bscs.org/$1 permanent;
}
server {
listen *:443 ssl http2;
listen [::]:443 ssl http2;
server_name media.bscs.org;
root /mnt/media_storage/media_root/media;
charset utf-8;
client_max_body_size 1000M;
# Gzip/compress text-based assets
gzip on;
gzip_http_version 1.0;
gzip_vary on;
gzip_comp_level 6;
gzip_proxied any;
gzip_types text/plain text/html text/css application/json application/x-javascript text/xml application/xml text/javascript application/javascript image/svg+xml;
gzip_disable "MSIE [1-6]\.";
# make sure gzip does not lose large gzipped js or css files
# see http://blog.leetsoft.com/2007/7/25/nginx-gzip-ssl
gzip_buffers 16 8k;
# Microcaching
proxy_cache cache;
proxy_cache_valid 200 1s;
# Cache in browser
expires $expires;
ssl on;
ssl_ciphers "my-cipher";
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_session_cache shared:SSL:10m;
add_header Strict-Transport-Security "max-age=63072000; includeSubdomains; preload";
add_header X-Content-Type-Options nosniff;
add_header 'Access-Control-Allow-Origin' '*';
ssl_session_tickets off;
ssl_stapling on;
ssl_stapling_verify on;
resolver_timeout 5s;
ssl_certificate /etc/nginx/ssl/cert_chain.crt;
ssl_certificate_key /etc/nginx/ssl/STAR.bscs.org.key;
ssl_dhparam /etc/nginx/ssl/dhparam.pem;
location = /favicon.ico {
access_log off;
log_not_found off;
sendfile on;
sendfile_max_chunk 1m;
}
location ~* \.(gif|jpg|jpeg|png|js|css)$ {
log_not_found off;
access_log off;
sendfile on;
sendfile_max_chunk 1m;
}
location /media/ {
alias /mnt/media_storage/media_root/media/;
location /media/monday/monday-file-upload/ {
alias /mnt/media_storage/media_root/media/monday/monday-file-upload/;
proxy_pass http://apps/;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Host $server_name;
}
}
# Redirects
rewrite ^/tech-report/2018-1/2018-1.html$ https://bscs.org/resources/reports/designing-citizen-science-for-both-science-and-education-a-workshop-report/$1 permanent;
}
Here's my post request in with Python requests:
def uploadFileToMediaServer(uploaded_file_local_path):
with open(uploaded_file_local_path, 'rb') as f:
files = {'uploaded_file': f}
r = requests.post('https://media.bscs.org/monday/monday-file-upload', files=files)
print(r.request.url, file=sys.stderr)
print(r.request.headers, file=sys.stderr)
return r
Here's my Cherrypy app:
import cherrypy
from cherrypy.process.plugins import Daemonizer
config = {
'global': {
'server.socket_host': '127.0.0.1',
'server.socket_port': 8080,
'server.thread_pool': 8,
'server.max_request_body_size': 0,
'server.socket_timeout': 60
}
}
class App:
#cherrypy.expose
def index(self, uploaded_file):
try:
with open('../uploads/{}'.format(uploaded_file.filename), 'wb') as f:
while True:
data = uploaded_file.file.read(8192)
if not data:
return {'message': 'File failed to upload'}
f.write(data)
return {'message': 'File uploaded successfully'}
except Exception:
cherrypy.log(Exception, traceback=True)
if __name__ == '__main__':
d = Daemonizer(cherrypy.engine)
d.subscribe()
cherrypy.tree.mount(App(), "/", config)
cherrypy.engine.start()
cherrypy.engine.block()
I try to put a nodejs application in production using a nginx server when I test locally everything works fine but when I put on line I have an infinite load of some particular assets
here is my nodejs configuration file
upstream beauteadom_me {
server localhost:3000;
}
server {
listen 80;
listen [::]:80;
server_name beauteadom.me www.beauteadom.me;
location ~ /\.well-known/acme-challenge {
allow all;
}
root /var/www/beauteadom.me;
location / {
return 301 https://www.beauteadom.me$request_uri;
}
}
server {
listen 443 ssl http2;
listen [::]:443 ssl http2;
http2_push_preload off;
server_name www.beauteadom.me;
root /var/www/beauteadom.me;
error_log /var/log/nginx/beauteadom.me.log notice;
access_log off;
location / {
http2_push_preload off;
add_header X-Content-Type-Options nosniff;
proxy_pass http://beauteadom_me;
}
location /websocket/ {
proxy_pass http://beauteadom_me;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
}
location ~* \.(html|css|js|png|jpg|jpeg|gif|ico|svg|eot|woff|ttf)$ {
expires max;
proxy_pass http://beauteadom_me;
}
location ~ /\. { deny all; }
gzip on;
gzip_vary on;
gzip_min_length 1000;
gzip_comp_level 2;
gzip_proxied expired no-cache no-store private auth;
gzip_types text/plain text/css text/xml text/javascript application/x-javascript application/xml;
gzip_disable "MSIE [1-6]\.";
access_log off;
error_log /var/log/nginx/error.log crit;
open_file_cache max=200000 inactive=20s;
open_file_cache_valid 30s;
open_file_cache_min_uses 2;
open_file_cache_errors on;
pagespeed on;
pagespeed FetchHttps enable,allow_self_signed;
pagespeed FileCachePath /var/ngx_pagespeed_cache;
pagespeed RewriteLevel OptimizeForBandwidth;
location ~ "\.pagespeed\.([a-z]\.)?[a-z]{2}\.[^.]{10}\.[^.]+" {
add_header "" "";
}
location ~ "^/pagespeed_static/" { }
location ~ "^/ngx_pagespeed_beacon$" { }
}
here's what i get in my chrome browser console
I think it's definitely one to one nginx security setting given that i do not have this problem locally
I already googling too much please I need your help. thank you in advance
I'm using nginx to gzip static files & json responses from a nodejs server.
For one specific request (with a query string like "?fn=foo"), I need to send a non-gzip json response.
I've tried to achieve this with nginx location module, based on a regex on the query string, but the query string is not in the URI used to match location by nginx
I've tried to put a if ($arg_fn = "foo") {gzip off;} in my main location route, but it fails with a 404 instead.
Any idea?
Is it possible to achieve this with nginx? or is there a way to tell from nodejs to nginx not to gzip this response?
My nginx conf file:
worker_processes 1;
error_log /var/log/nginx/error.log;
pid /var/run/nginx.pid;
events {
worker_connections 1024;
}
http {
proxy_cache_path /var/cache/nginx levels=1:2 keys_zone=one:8m max_size=3000m inactive=600m;
proxy_temp_path /var/cache/nginx/proxy_temp;
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main;
sendfile on;
keepalive_timeout 65;
gzip on;
gzip_comp_level 6;
gzip_vary on;
gzip_min_length 1000;
gzip_proxied any;
gzip_types text/plain text/css application/x-javascript text/xml application/xml application/xml+rss text/javascript application/javascript application/json;
gzip_buffers 16 8k;
map $http_upgrade $connection_upgrade {
default upgrade;
'' close;
}
upstream upstream {
server 127.0.0.1:8887;
server 127.0.0.1:8888;
keepalive 64;
}
server {
listen 80;
listen 443 ssl;
server_name _;
ssl_certificate /etc/nginx/ssl/zellno-ssl-bundle.crt;
ssl_certificate_key /etc/nginx/ssl/zellno-key.pem;
location / {
if ($arg_fn = "comp") {
gzip off;
}
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-NginX-Proxy true;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_pass http://upstream/;
proxy_redirect off;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $connection_upgrade;
proxy_set_header Host $host;
}
error_page 404 /404.html;
location = /40x.html {
root /usr/share/nginx/html;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
}
}
I think your issue is that you said $args_fn with an "s", while it should be $arg_fn in singular form, try that and tell me how it goes.
EDIT:
Try this to make sure that you enter the if block
location / {
if ($arg_fn = "comp") {
return 444;
#gzip off;
}
}
If it returns the error code then the if is working but not the gzip, if it doesn't work then we need to fix the if first
Good day. I got nginx server and it runs https connections.
For now all URLs run with https. All i need is - to exclude some URLs from https, so they could be accessed with simple http.
Here is my NGINX config file:
server {
listen 80;
server_name my-fin.ru www.my-fin.ru;
root /usr/server/finance/abacus/webapp;
location ~ ^/.+\.(eot|ttf|woff)$ {
expires max;
add_header Cache-Control public;
add_header Access-Control-Allow-Origin *;
}
location ~ ^/.+\.(ico|jpg|jpeg|gif|pdf|jar|png|js|css|txt|epf|svg)$ {
expires max;
add_header Cache-Control public;
}
location / {
return 301 https://my-fin.ru;
}
}
server {
listen *:443;
server_name my-fin.ru;
client_max_body_size 10m;
gzip on;
gzip_min_length 500;
gzip_buffers 4 8k;
gzip_types text/plain text/xml application/xml application/x-javascript text/javascript text/css text/json application/json;
access_log /var/log/nginx/finance.access.log;
error_log /var/log/nginx/finance.error.log;
ssl on;
ssl_certificate /usr/server/myfin.crt;
ssl_certificate_key /usr/server/myfin.key;
charset utf-8;
root /usr/server/finance/abacus/webapp;
location ~ ^/.+\.(eot|ttf|woff)$ {
expires max;
add_header Cache-Control public;
add_header Access-Control-Allow-Origin *;
}
location ~ ^/.+\.(ico|jpg|jpeg|gif|pdf|jar|png|js|css|txt|epf|svg)$ {
expires max;
add_header Cache-Control public;
}
location / {
# give site more time to respond
proxy_read_timeout 120;
proxy_pass http://127.0.0.1:8087;
proxy_redirect http:// $scheme://;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr ;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for ;
}
}
Please help to configure nginx.
According to this comment, Here's how i would do it.
## non https server
server {
#non ssl server
listen 80;
server_name example.com;
root /path/to/root;
location /features {
#handle /features
}
location /info {
# handle /info
}
location /help {
#handle /help
}
location /
return 301 https://example.com$request_uri;
}
}
## https server
server {
# handle ssl
listen 443 ssl;
server_name example.com subdomain1.example.com;
root /path/to/root;
location ~ /(features|help|info) {
# redirect those 3 subfolders to http
return 301 http://example.com$request_uri;
}
location / {
#handle ssl requests;
}
}
## https subdomain
server {
listen 443 ssl;
server_name subdomain2.example.com;
root /path/to/root;
location ~ /(features|help|info) {
# redirect those 3 subfolders to http
return 301 http://example.com$request_uri;
}
location / {
# subdomain handling
}
}
Please note that https wont work on subdomains unless you have a wildcard SSL certificate, otherwise the browser will issue a warning.