Problem/Motivation
Location: https://xn----7sblvlgns.xn--p1ai/rss.xml
Warning: Uninitialized string offset 0 in Drupal\Component\Utility\Html::transformRootRelativeUrlsToAbsolute() (line 474 of /DATA/home-sites/lom/web/core/lib/Drupal/Component/Utility/Html.php)
#0 /DATA/home-sites/lom/web/core/includes/bootstrap.inc(305): _drupal_error_handler_real(2, 'Uninitialized s...', '/DATA/home-site...', 474)
#1 /DATA/home-sites/lom/web/core/lib/Drupal/Component/Utility/Html.php(474): _drupal_error_handler(2, 'Uninitialized s...', '/DATA/home-site...', 474)
#2 /DATA/home-sites/lom/web/core/lib/Drupal/Core/EventSubscriber/RssResponseRelativeUrlFilter.php(63): Drupal\Component\Utility\Html::transformRootRelativeUrlsToAbsolute(' #3 /DATA/home-sites/lom/web/core/lib/Drupal/Core/EventSubscriber/RssResponseRelativeUrlFilter.php(29): Drupal\Core\EventSubscriber\RssResponseRelativeUrlFilter->transformRootRelativeUrlsToAbsolute('<?xml version="...', Object(Symfony\Component\HttpFoundation\Request))
#4 [internal function]: Drupal\Core\EventSubscriber\RssResponseRelativeUrlFilter->onResponse(Object(Symfony\Component\HttpKernel\Event\ResponseEvent), 'kernel.response', Object(Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher))
#5 /DATA/home-sites/lom/web/core/lib/Drupal/Component/EventDispatcher/ContainerAwareEventDispatcher.php(142): call_user_func(Array, Object(Symfony\Component\HttpKernel\Event\ResponseEvent), 'kernel.response', Object(Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher))
#6 /DATA/home-sites/lom/vendor/symfony/http-kernel/HttpKernel.php(191): Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object(Symfony\Component\HttpKernel\Event\ResponseEvent), 'kernel.response')
#7 /DATA/home-sites/lom/vendor/symfony/http-kernel/HttpKernel.php(179): Symfony\Component\HttpKernel\HttpKernel->filterResponse(Object(Drupal\Core\Cache\CacheableResponse), Object(Symfony\Component\HttpFoundation\Request), 1)
#8 /DATA/home-sites/lom/vendor/symfony/http-kernel/HttpKernel.php(80): Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object(Symfony\Component\HttpFoundation\Request), 1)
#9 /DATA/home-sites/lom/web/core/lib/Drupal/Core/StackMiddleware/Session.php(57): Symfony\Component\HttpKernel\HttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#10 /DATA/home-sites/lom/web/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(47): Drupal\Core\StackMiddleware\Session->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#11 /DATA/home-sites/lom/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(191): Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#12 /DATA/home-sites/lom/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(128): Drupal\page_cache\StackMiddleware\PageCache->fetch(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#13 /DATA/home-sites/lom/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(82): Drupal\page_cache\StackMiddleware\PageCache->lookup(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#14 /DATA/home-sites/lom/web/core/modules/ban/src/BanMiddleware.php(50): Drupal\page_cache\StackMiddleware\PageCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#15 /DATA/home-sites/lom/web/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(47): Drupal\ban\BanMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#16 /DATA/home-sites/lom/web/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(52): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#17 /DATA/home-sites/lom/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#18 /DATA/home-sites/lom/web/core/lib/Drupal/Core/DrupalKernel.php(706): Stack\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#19 /DATA/home-sites/lom/web/index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request))
#20 {main}