转换HTTP到HTTPS的对齐问题及通过.htaccess实现跳转需求

Hey there! I see you're trying to set up two critical redirect flows: forcing all HTTP traffic to HTTPS, and sending non-WWW requests to the WWW version of your domain. Let's sort out your .htaccess rules to make this work smoothly.

What's Off with Your Current Code #

Your existing rule only handles non-WWW to WWW redirects over HTTP, but it doesn't enforce HTTPS for incoming requests, nor does it account for already-HTTPS non-WWW traffic. That's why you're seeing misalignment in your redirect chain.

Corrected .htaccess Rules #

Here's the refined code that handles both redirects in the proper order, using permanent 301 redirects (best for SEO and user experience):

RewriteEngine On

# 1. First, force all HTTP requests to upgrade to HTTPS
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}/$1 [R=301,L]

# 2. Then, redirect non-WWW HTTPS traffic to WWW HTTPS
RewriteCond %{HTTP_HOST} ^assignmentbox\.co.uk$ [NC]
RewriteRule ^(.*)$ https://www.assignmentbox.co.uk/$1 [R=301,L]

# BEGIN EXPIRES
<IfModule mod_expires.c>
ExpiresActive On
ExpiresDefault "access plus 10 days"
# Fill in your remaining ExpiresByType rules here (examples below)
ExpiresByType text/css "access plus 1 month"
ExpiresByType image/jpeg "access plus 6 months"
ExpiresByType application/javascript "access plus 1 month"
</IfModule>
# END EXPIRES

Breakdown of Each Rule #

• First Rule: This checks if the request is using HTTP (%{HTTPS} off) and redirects it to the exact same path over HTTPS. This ensures every user starts on a secure connection first.
• Second Rule: Once we're on HTTPS, this checks if the domain is the non-WWW variant (assignmentbox.co.uk) and sends it to the WWW version. The [NC] flag makes the domain check case-insensitive.
• Expires Module: I added a few common ExpiresByType examples since your original code was cut off—be sure to add all content types relevant to your site to maximize browser caching benefits.

Quick Tips #

• Test these redirects in incognito mode or using curl -I in your terminal to avoid cached old redirects messing with your testing.
• Ensure your SSL certificate covers both assignmentbox.co.uk and www.assignmentbox.co.uk to avoid security warnings for users.
• 301 redirects are permanent, so double-check the rules before deploying—browsers will cache them for a while!

内容的提问来源于stack exchange，提问作者Kenna