diff --git a/opac/tests/test_main_custom_filters.py b/opac/tests/test_main_custom_filters.py
new file mode 100644
index 000000000..1552acaf6
--- /dev/null
+++ b/opac/tests/test_main_custom_filters.py
@@ -0,0 +1,57 @@
+# coding: utf-8
+from webapp.main.custom_filters import get_absolute_url
+
+from .base import BaseTestCase
+
+
+class CustomFiltersTestCase(BaseTestCase):
+    """Test cases for custom Jinja2 filters in webapp.main.custom_filters"""
+
+    def test_get_absolute_url_with_absolute_http_url(self):
+        """Test that absolute HTTP URLs are returned as-is"""
+        url = "http://example.com/logo.png"
+        base_url = "http://scielo.do/"
+        result = get_absolute_url(url, base_url)
+        self.assertEqual(result, "http://example.com/logo.png")
+
+    def test_get_absolute_url_with_absolute_https_url(self):
+        """Test that absolute HTTPS URLs are returned as-is"""
+        url = "https://example.com/logo.png"
+        base_url = "http://scielo.do/"
+        result = get_absolute_url(url, base_url)
+        self.assertEqual(result, "https://example.com/logo.png")
+
+    def test_get_absolute_url_with_relative_url_with_slash(self):
+        """Test that relative URLs with leading slash are concatenated correctly"""
+        url = "/media/logo.png"
+        base_url = "http://scielo.do/"
+        result = get_absolute_url(url, base_url)
+        self.assertEqual(result, "http://scielo.do/media/logo.png")
+
+    def test_get_absolute_url_with_relative_url_without_slash(self):
+        """Test that relative URLs without leading slash are concatenated correctly"""
+        url = "media/logo.png"
+        base_url = "http://scielo.do/"
+        result = get_absolute_url(url, base_url)
+        self.assertEqual(result, "http://scielo.do/media/logo.png")
+
+    def test_get_absolute_url_with_empty_url(self):
+        """Test that empty URLs return empty string"""
+        url = ""
+        base_url = "http://scielo.do/"
+        result = get_absolute_url(url, base_url)
+        self.assertEqual(result, "")
+
+    def test_get_absolute_url_with_none_url(self):
+        """Test that None URLs return empty string"""
+        url = None
+        base_url = "http://scielo.do/"
+        result = get_absolute_url(url, base_url)
+        self.assertEqual(result, "")
+
+    def test_get_absolute_url_with_empty_base_url(self):
+        """Test that relative URLs with empty base_url work"""
+        url = "/media/logo.png"
+        base_url = ""
+        result = get_absolute_url(url, base_url)
+        self.assertEqual(result, "media/logo.png")
diff --git a/opac/webapp/__init__.py b/opac/webapp/__init__.py
index e25bd0505..633d3e790 100644
--- a/opac/webapp/__init__.py
+++ b/opac/webapp/__init__.py
@@ -150,6 +150,7 @@ def create_app():
     # Registrando os filtros
     app.jinja_env.filters["trans_alpha2"] = custom_filters.trans_alpha2
     app.jinja_env.filters["datetimefilter"] = custom_filters.datetimefilter
+    app.jinja_env.filters["get_absolute_url"] = custom_filters.get_absolute_url
 
     # i18n
     babel.init_app(app)
diff --git a/opac/webapp/main/custom_filters.py b/opac/webapp/main/custom_filters.py
index 5a5aca914..0da9f3163 100644
--- a/opac/webapp/main/custom_filters.py
+++ b/opac/webapp/main/custom_filters.py
@@ -17,3 +17,28 @@ def trans_alpha2(value):
 
 def datetimefilter(value, format="%Y-%m-%d %H:%M"):
     return utc_to_local(value).strftime(format)
+
+
+def get_absolute_url(url, base_url=""):
+    """
+    Returns an absolute URL. If the URL already starts with http:// or https://,
+    returns it as-is. Otherwise, concatenates base_url with url.
+    
+    Args:
+        url: The URL to process (may be relative or absolute)
+        base_url: The base URL to prepend if url is relative (default: "")
+    
+    Returns:
+        An absolute URL string
+    """
+    if not url:
+        return ""
+    
+    # Check if URL is already absolute
+    if url.startswith("http://") or url.startswith("https://"):
+        return url
+    
+    # URL is relative, concatenate with base_url
+    # Remove leading slash from url if present, as base_url should handle it
+    url_cleaned = url.lstrip("/")
+    return f"{base_url}{url_cleaned}"
diff --git a/opac/webapp/templates/article/includes/meta.html b/opac/webapp/templates/article/includes/meta.html
index b77476482..767bbfea4 100644
--- a/opac/webapp/templates/article/includes/meta.html
+++ b/opac/webapp/templates/article/includes/meta.html
@@ -4,7 +4,7 @@
 <meta property="og:type" content="article"/>
 <meta property="og:title" content="{{ article.title }}"/>
 <meta property="og:description" content="{{ article.abstract|escape|truncate(100) }}"/>
-<meta property="og:image" content="{{request.url_root}}{{ journal.logo_url|replace("/", "" , 1)}}"/>
+<meta property="og:image" content="{{ journal.logo_url|get_absolute_url(request.url_root) }}"/>
 <!-- social share tags -->
 
 {% if article.authors_meta -%}
diff --git a/opac/webapp/templates/issue/includes/meta.html b/opac/webapp/templates/issue/includes/meta.html
index 2c7255ef2..5f9d68c27 100644
--- a/opac/webapp/templates/issue/includes/meta.html
+++ b/opac/webapp/templates/issue/includes/meta.html
@@ -5,5 +5,5 @@
 <meta property="og:title" content="{{ journal.title }}" />
 <meta property="og:description" content="{{ journal.get_mission_by_lang(session.lang[:2])|safe|default(_(" Periódico sem
     missão cadastrada"), true) }}" />
-<meta property="og:image" content="{{request.url_root}}{{ journal.logo_url|replace("/", "" , 1) }}" />
+<meta property="og:image" content="{{ journal.logo_url|get_absolute_url(request.url_root) }}" />
 <!-- social share tags -->
diff --git a/opac/webapp/templates/journal/includes/meta.html b/opac/webapp/templates/journal/includes/meta.html
index 87dc17c0c..0fbc95f99 100644
--- a/opac/webapp/templates/journal/includes/meta.html
+++ b/opac/webapp/templates/journal/includes/meta.html
@@ -4,5 +4,5 @@
 <meta property="og:type" content="website"/>
 <meta property="og:title" content="{{ journal.title }}"/>
 <meta property="og:description" content="{{ journal.get_mission_by_lang(session.lang[:2])|striptags|default(_("Periódico sem missão cadastrada"), true) }}"/>
-<meta property="og:image" content="{{request.url_root}}{{ journal.logo_url|replace("/", "", 1) }}"/>
+<meta property="og:image" content="{{ journal.logo_url|get_absolute_url(request.url_root) }}"/>
 <!-- social share tags -->