htaccess redirect for Angular routes - angularjs

Question

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?

Answer 1

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.

Answer 2

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

Answer 3

A poor man's solution (not using mod_rewrite):
ErrorDocument 404 /index.html

Answer 4

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

Answer 5

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>

Answer 6

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.

Answer 7

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]

Answer 8

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).

Answer 9

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