Laravel Localization is working locally but not on the live server

Question

Laravel Version

10.28.0

PHP Version

8.2

Description

I have a Laravel project that I've developed locally. I'm experiencing the issue mentioned in the title. I've tried Middleware, Provider, Cookie, but couldn't find a solution. Additionally, the project has Laravel Octane installed and is running with Swoole.

<?php

namespace App\Providers;

use Illuminate\Support\Facades\App;
use Illuminate\Support\ServiceProvider;

class LanguageProvider extends ServiceProvider
{
    /**
     * Register services.
     */
    public function register(): void
    {
        //
    }

    /**
     * Bootstrap services.
     */
    public function boot(): void
    {
        $subdomain = explode('.', str_replace('http://', '', str_replace('https://', '', request()->fullUrl())))[0];

        $allowedLanguages = ['en', 'tr', 'fr'];

        if(in_array($subdomain, $allowedLanguages)) {
            $this->app->setLocale($subdomain);
        }
    }
}

Steps To Reproduce

Create a Laravel project and install Octane. Then, try to implement localization using Provider or Middleware. You will notice that it doesn't work correctly.

Docker File

# Accepted values: 8.2 - 8.1 - 8.0
ARG PHP_VERSION=8.2

ARG COMPOSER_VERSION=latest

###########################################
# PHP dependencies
###########################################

FROM composer:${COMPOSER_VERSION} AS vendor
WORKDIR /var/www/html
COPY composer* ./
RUN composer install \
  --no-interaction \
  --prefer-dist \
  --ignore-platform-reqs \
  --optimize-autoloader \
  --apcu-autoloader \
  --ansi \
  --no-scripts \
  --audit

###########################################

FROM php:${PHP_VERSION}-cli-buster

LABEL maintainer="Özgür Can Karagöz <[email protected]>"

ARG WWWUSER=1000
ARG WWWGROUP=1000
ARG TZ=UTC

# Accepted values: app - horizon - scheduler
ARG CONTAINER_MODE=app

ARG APP_WITH_HORIZON=false
ARG APP_WITH_SCHEDULER=false

ENV DEBIAN_FRONTEND=noninteractive \
    TERM=xterm-color \
    CONTAINER_MODE=${CONTAINER_MODE} \
    APP_WITH_HORIZON=${APP_WITH_HORIZON} \
    APP_WITH_SCHEDULER=${APP_WITH_SCHEDULER}

ENV ROOT=/var/www/html
WORKDIR $ROOT

SHELL ["/bin/bash", "-eou", "pipefail", "-c"]

RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime \
    && echo $TZ > /etc/timezone

RUN apt-get update; \
    apt-get upgrade -yqq; \
    pecl -q channel-update pecl.php.net; \
    apt-get install -yqq --no-install-recommends --show-progress \
          apt-utils \
          gnupg \
          gosu \
          git \
          curl \
          wget \
          libcurl4-openssl-dev \
          ca-certificates \
          supervisor \
          libmemcached-dev \
          libz-dev \
          libbrotli-dev \
          libpq-dev \
          libjpeg-dev \
          libpng-dev \
          libfreetype6-dev \
          libssl-dev \
          libwebp-dev \
          libmcrypt-dev \
          libonig-dev \
          libzip-dev zip unzip \
          libargon2-1 \
          libidn2-0 \
          libpcre2-8-0 \
          libpcre3 \
          libxml2 \
          libxml2-dev \
          libzstd1 \
          procps

###########################################
# Soap
###########################################

RUN docker-php-ext-install soap

###########################################
# pdo_mysql
###########################################

RUN docker-php-ext-install pdo_mysql;

###########################################
# zip
###########################################

RUN docker-php-ext-configure zip && docker-php-ext-install zip;

###########################################
# mbstring
###########################################

RUN docker-php-ext-install mbstring;

###########################################
# GD
###########################################

RUN docker-php-ext-configure gd \
            --prefix=/usr \
            --with-jpeg \
            --with-webp \
            --with-freetype \
    && docker-php-ext-install gd;
    
###########################################
# PCNTL
###########################################

ARG INSTALL_PCNTL=true

RUN if [ ${INSTALL_PCNTL} = true ]; then \
      docker-php-ext-install pcntl; \
  fi

###########################################
# BCMath
###########################################

ARG INSTALL_BCMATH=true

RUN if [ ${INSTALL_BCMATH} = true ]; then \
      docker-php-ext-install bcmath; \
  fi

###########################################
# OpenSwoole/Swoole extension
###########################################

ARG INSTALL_SWOOLE=true
ARG SERVER=openswoole

RUN if [ ${INSTALL_SWOOLE} = true ]; then \
      apt-get install -yqq --no-install-recommends --show-progress libc-ares-dev \
      && pecl -q install -o -f -D 'enable-openssl="yes" enable-http2="yes" enable-swoole-curl="yes" enable-mysqlnd="yes" enable-cares="yes"' ${SERVER} \
      && docker-php-ext-enable ${SERVER}; \
    fi

###########################################################################
# Human Language and Character Encoding Support
###########################################################################

ARG INSTALL_INTL=true

RUN if [ ${INSTALL_INTL} = true ]; then \
      apt-get install -yqq --no-install-recommends --show-progress zlib1g-dev libicu-dev g++ \
      && docker-php-ext-configure intl \
      && docker-php-ext-install intl; \
  fi

###########################################
# MySQL Client
###########################################

ARG INSTALL_MYSQL_CLIENT=true

RUN if [ ${INSTALL_MYSQL_CLIENT} = true ]; then \
      apt-get install -yqq --no-install-recommends --show-progress default-mysql-client; \
  fi

###########################################
# Laravel scheduler
###########################################

RUN if [ ${CONTAINER_MODE} = 'scheduler' ] || [ ${APP_WITH_SCHEDULER} = true ]; then \
      wget -q "https://github.com/aptible/supercronic/releases/download/v0.2.1/supercronic-linux-amd64" \
           -O /usr/bin/supercronic \
      && chmod +x /usr/bin/supercronic \
      && mkdir -p /etc/supercronic \
      && echo "*/1 * * * * php ${ROOT}/artisan schedule:run --verbose --no-interaction" > /etc/supercronic/laravel; \
  fi

###########################################

RUN groupadd --force -g $WWWGROUP octane \
    && useradd -ms /bin/bash --no-log-init --no-user-group -g $WWWGROUP -u $WWWUSER octane

RUN apt-get clean \
    && docker-php-source delete \
    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
    && rm /var/log/lastlog /var/log/faillog

COPY . .
COPY --from=vendor ${ROOT}/vendor vendor

RUN mkdir -p \
  storage/framework/{sessions,views,cache} \
  storage/logs \
  bootstrap/cache \
  && chown -R octane:octane \
  storage \
  bootstrap/cache \
  && chmod -R ug+rwx storage bootstrap/cache

COPY deployment/octane/supervisord* /etc/supervisor/conf.d/
COPY deployment/octane/php.ini /usr/local/etc/php/conf.d/octane.ini
COPY deployment/octane/opcache.ini /usr/local/etc/php/conf.d/opcache.ini
COPY .env .

RUN chmod +x deployment/octane/entrypoint.sh
RUN cat deployment/octane/utilities.sh >> ~/.bashrc

EXPOSE 9000

ENTRYPOINT ["deployment/octane/entrypoint.sh"]

HEALTHCHECK --start-period=5s --interval=2s --timeout=5s --retries=8 CMD php artisan octane:status || exit 1