CODEWITHSUNDEEP
angularjs.htaccesshttp-redirectweb-applicationsroutes
Lucas Penney
Lucas Penney

Reputation: 2674

htaccess redirect for Angular routes

I have an angular application with several routes, such as:

site.com/
site.com/page
site.com/page/4

Using angular's html5 routing mode, these resolve correctly when you click links to them from within the application, but of course are 404 errors when you do a hard refresh. To fix this, I've tried implementing a basic htaccess rewrite.

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_METHOD} !OPTIONS
RewriteRule ^(.*)$ index.html [L]

This works for the angular requests, however when I try to load scripts or make ajax calls within my domain, such as:

<script src="/app/programs/script.js"></script>

This script doesn't load - it's request is redirected and it tries to load the index.html page as the .htaccess thinks it should reroute the request - not knowing that this file does exist and it should load the file instead of redirect.

Is there any way I can have the htaccess redirect the request to index.html (with the view parameters) only if there is not an actual file that it should resolve to?

Upvotes: 91

Views: 132138

Answers (12)

Nelize du Toit
Nelize du Toit

Reputation: 51

I struggled to find the perfect answer for the case when you are working with a subdomain in cPanel.

Here is what worked for me. Lets say your main domain is mysite.com and you are using cPanel to host your site on the subdomain subdom.mysite.com. Add a .htaccess file in the same directory as your index.html file, i.e., in cPanel file manager > subdom.mysite.com directory (not in the public_html directory). Then write the following inside the .htaccess file:

RewriteEngine On
# If an existing asset or directory is requested go to it as it is
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} -f [OR]
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} -d
RewriteRule ^ - [L]

# If the requested resource doesn't exist, use index.html
RewriteRule ^ ./index.html

Upvotes: 1

MB_18
MB_18

Reputation: 2251

For Angular 2+, the following .htaccess file works.

Here is the .htaccess content:

<IfModule mod_rewrite.c>
  RewriteEngine On
  
  # Redirection of requests to index.html
  RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} -f [OR]
  RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} -d
  RewriteRule ^.*$ - [NC,L]
  # Redirect all non-file routes to index.html
  RewriteRule ^(?!.*\.).*$ index.html [NC,L]
</IfModule>

If you have not created the .htacess file yet, create it in /public_html directory.

Upvotes: 1

user2280852
user2280852

Reputation: 187

The use this snippet still works. I am using cpanel for a site I created for a customer using Angular 13. I was getting the 404 error when I refreshed the page and got the same 404 error when I tried to navigate to a different page from the browser. I'm not sure when the ,htaccess code was generated on the hosting site or if it was with a tool or whether it was added when the SSL was created for this site. I added the snippet above to what was already there and it worked!

 <IfModule mod_rewrite.c>
  RewriteEngine On
  RewriteCond %{HTTPS} off
  RewriteCond %{HTTP_HOST} ^(www\.)?domain name\.com$ [NC]
  RewriteRule ^(.*)$ https://domain name.com/$1 [L,R=301]


  #Redirection of requests to index.html
  RewriteCond %{REQUEST_FILENAME} -s [OR]
  RewriteCond %{REQUEST_FILENAME} -l [OR]
  RewriteCond %{REQUEST_FILENAME} -d
  RewriteRule ^.*$ - [NC,L]
  RewriteRule ^(.*) /index.html [NC,L]

Upvotes: 0

Berat
Berat

Reputation: 1

Since angular is an AJAX application, html4 cannot implement it. All you have to do is activate the html5 mode in the .htaccess file.

angular.module('main', []).config(['$locationProvider', function($locationProvider) {
  ...
  $locationProvider.html5Mode(true);
  ...
});

RewriteEngine On
# If an existing asset or directory is requested go to it as it is
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} -f [OR]
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} -d
RewriteRule ^ - [L]

# If the requested resource doesn't exist, use index.html
RewriteRule ^ /index.html

Upvotes: 0

Top-Master
Top-Master

Reputation: 8751

In my case, we needed a more feature reach .htaccess configuration, like with:

  • Forcing to HTTPS protocol (commented out in below).
  • Translation of Authorization header to HTTP_AUTHORIZATION environment variable.
  • Cross-Origin Resource Sharing (CORS).
  • And disabled caching for specific formats (commented out as well).

# If mod_rewrite is not present.
<IfModule !mod_rewrite.c>
  FallbackResource /index.html
</IfModule>

<IfModule mod_rewrite.c>
  RewriteEngine On
  # Prefix for all rewritten routes ("index.html" gets "/index.html").
  RewriteBase /

  # Redirects to HTTPS protocol (once uncommented).
  #
#  RewriteCond %{HTTPS} !on
#  RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [L]

  # Make sure Authorization HTTP header is available.
  RewriteRule ^ - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]

  # Allows access to existing files or dirs.
  RewriteCond %{REQUEST_FILENAME} -s [OR]
  RewriteCond %{REQUEST_FILENAME} -l [OR]
  RewriteCond %{REQUEST_FILENAME} -d
  RewriteRule ^.*$ - [NC,L]

  # Prevents treating the main-script as a route.
  RewriteRule ^index\.html$ - [L]
  # Redirect anything else to main-script
  RewriteRule ^(.*) index.html [NC,L]
</IfModule>

# Enable Cross-Origin Resource Sharing (CORS)
#
<IfModule mod_headers.c>
  Header merge Vary Origin

  # Allows any origin (just like "*", but works in more cases)
  SetEnvIf Origin "^(http(s)?://[^/:]*(?::\d{1,5})?)?" REQUEST_ORIGIN=$1
  Header always append Access-Control-Allow-Origin %{REQUEST_ORIGIN}e env=REQUEST_ORIGIN

  Header always set Access-Control-Allow-Credentials "true"
  Header always set Access-Control-Allow-Methods "GET, POST, PUT, DELETE"
  Header always set Access-Control-Allow-Headers "*"
  Header always set Access-Control-Expose-Headers "*"
</IfModule>

# Disables Browser caching for production (edit pattern as you wish).
#
#<FilesMatch "\.(html|htm|js|json|css)$">
#   # Ensures "Expires" header is not overridden by module.
#   <IfModule mod_expires.c>
#       ExpiresActive Off
#   </IfModule>
#   <IfModule mod_headers.c>
#       FileETag None
#       Header unset ETag
#       Header unset Pragma
#       Header unset Cache-Control
#       Header unset Last-Modified
#       Header set Pragma "no-cache"
#       Header set Cache-Control "max-age=0, no-cache, no-store, must-revalidate"
#       Header set Expires "Mon, 10 Apr 1972 00:00:00 GMT"
#   </IfModule>
#</FilesMatch>

Note: We use [L] instead of [L,R=301] as the latter causes Browser to cache redirects permanently (and even if someday that route is a file it will still get redirected).

Upvotes: 1

David Wolf
David Wolf

Reputation: 1738

There is a great "Angular .htaccess generator" available on julianpoemp.github.io/ngx-htaccess-generator/.

The generator is open-source (the source code can be found on github.com/julianpoemp/ngx-htaccess-generator).

The generated .htaccess looks like this by default and works fine for me:

# Generated with ngx-htaccess-generator v1.2.0
# Check for updates: https://julianpoemp.github.io/ngx-htaccess-generator/
#
# Transparency notice: Some parts were extracted from
# Apache Server Configs v5.0.0 | MIT License
# https://github.com/h5bp/server-configs-apache
# Extracted parts are wrapped by "START Extract from ASC"

<IfModule mod_rewrite.c>
  RewriteEngine On
  
  # Redirection of requests to index.html
  RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} -f [OR]
  RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} -d
  RewriteRule ^.*$ - [NC,L]
  # Redirect all non-file routes to index.html
  RewriteRule ^(?!.*\.).*$ index.html [NC,L]
</IfModule>

Successfully tested with Angular 13.0.3.

Upvotes: 2

Sachin from Pune
Sachin from Pune

Reputation: 736

In my case i create .htaccess file like below

RewriteEngine on
RewriteCond %{REQUEST_FILENAME} -s [OR]
RewriteCond %{REQUEST_FILENAME} -l [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^.*$ - [NC,L]

RewriteRule ^(.*) ./index.html [NC,L]

just added . before /index.html and add that file in my domain like https://example.com/subfolder and it's works fine

Upvotes: 11

rajasaur
rajasaur

Reputation: 5460

Use a snippet like:

RewriteEngine on
RewriteCond %{REQUEST_FILENAME} -s [OR]
RewriteCond %{REQUEST_FILENAME} -l [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^.*$ - [NC,L]

RewriteRule ^(.*) /index.html [NC,L]

This will skip to the actual resource if there is one, and to index.html for all AngularJS routes.

Upvotes: 182

Sumit Jaiswal
Sumit Jaiswal

Reputation: 857

Check out this link : https://stackoverflow.com/a/49455101/5899936 Create .htaccess file in root folder and pase this in the .htaccess

 <IfModule mod_rewrite.c>
  RewriteEngine On
  RewriteBase /
  RewriteRule ^index\.html$ - [L]
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteRule . /index.html [L]
</IfModule>

Upvotes: 6

andrea06590
andrea06590

Reputation: 1299

I will provide another detailed htaccess file in case you need to :

  • Considerate the baseUrl and default index file
  • Remove the leading slash to manage :params

Here is my htaccess, very close, but more specific :

DirectoryIndex index.html
RewriteEngine on
RewriteBase /subDir
RewriteCond %{REQUEST_FILENAME} -s [OR]
RewriteCond %{REQUEST_FILENAME} -l [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^.*$ - [NC,L]
RewriteRule ^(.*) index.html [NC,L]

Upvotes: 2

Cito
Cito

Reputation: 5613

A poor man's solution (not using mod_rewrite):

ErrorDocument 404 /index.html

Upvotes: 9

port115
port115

Reputation: 429

There is a problem if app requested directive template file, but file is missing. In some case it caused app requested multiple script file in the index.html.

we should send 404 response instead of index.html file if file does not exist. So i add simple regex pattern to identify missing file request.

RewriteEngine On
# If an existing asset or directory is requested go to it as it is
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} -f [OR]
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} -d
RewriteRule ^ - [L]

# If the requested pattern is file and file doesn't exist, send 404
RewriteCond %{REQUEST_URI} ^(\/[a-z_\-\s0-9\.]+)+\.[a-zA-Z]{2,4}$
RewriteRule ^ - [L,R=404]

# otherwise use history router
RewriteRule ^ /index.html

Upvotes: 24

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