diff --git a/src/Model/Item.php b/src/Model/Item.php
index 78e0321b47..fb88da8a28 100644
--- a/src/Model/Item.php
+++ b/src/Model/Item.php
@@ -2742,6 +2742,23 @@ class Item
 		}
 
 		$body = $item['body'] ?? '';
+		$shared = BBCode::fetchShareAttributes($body);
+		if (!empty($shared['guid'])) {
+			$shared_item = Post::selectFirst(['uri-id', 'plink'], ['guid' => $shared['guid']]);
+			$shared_uri_id = $shared_item['uri-id'] ?? 0;
+			$shared_links = [strtolower($shared_item['plink'] ?? '')];
+			$shared_attachments = Post\Media::splitAttachments($shared_uri_id, $shared['guid']);
+			$shared_links = array_merge($shared_links, array_column($shared_attachments['visual'], 'url'));
+			$shared_links = array_merge($shared_links, array_column($shared_attachments['link'], 'url'));
+			$shared_links = array_merge($shared_links, array_column($shared_attachments['additional'], 'url'));
+			$item['body'] = self::replaceVisualAttachments($shared_attachments, $item['body']);
+		} else {
+			$shared_uri_id = 0;
+			$shared_links = [];
+		}
+		$attachments = Post\Media::splitAttachments($item['uri-id'], $item['guid'] ?? '', $shared_links);
+		$item['body'] = self::replaceVisualAttachments($attachments, $item['body'] ?? '');
+
 		$item['body'] = preg_replace("/\s*\[attachment .*?\].*?\[\/attachment\]\s*/ism", "\n", $item['body']);
 		self::putInCache($item);
 		$item['body'] = $body;
@@ -2764,25 +2781,13 @@ class Item
 			return $s;
 		}
 
-		$shared = BBCode::fetchShareAttributes($item['body']);
-		if (!empty($shared['guid'])) {
-			$shared_item = Post::selectFirst(['uri-id', 'plink'], ['guid' => $shared['guid']]);
-			$shared_uri_id = $shared_item['uri-id'] ?? 0;
-			$shared_links = [strtolower($shared_item['plink'] ?? '')];
-			$attachments = Post\Media::splitAttachments($shared_uri_id, $shared['guid']);
-			$s = self::addVisualAttachments($attachments, $item, $s, true);
-			$s = self::addLinkAttachment($attachments, $body, $s, true, []);
-			$s = self::addNonVisualAttachments($attachments, $item, $s, true);
-			$shared_links = array_merge($shared_links, array_column($attachments['visual'], 'url'));
-			$shared_links = array_merge($shared_links, array_column($attachments['link'], 'url'));
-			$shared_links = array_merge($shared_links, array_column($attachments['additional'], 'url'));
+		if (!empty($shared_attachments)) {
+			$s = self::addVisualAttachments($shared_attachments, $item, $s, true);
+			$s = self::addLinkAttachment($shared_attachments, $body, $s, true, []);
+			$s = self::addNonVisualAttachments($shared_attachments, $item, $s, true);
 			$body = preg_replace("/\s*\[share .*?\].*?\[\/share\]\s*/ism", '', $body);
-		} else {
-			$shared_uri_id = 0;
-			$shared_links = [];
 		}
 
-		$attachments = Post\Media::splitAttachments($item['uri-id'], $item['guid'] ?? '', $shared_links);
 		$s = self::addVisualAttachments($attachments, $item, $s, false);
 		$s = self::addLinkAttachment($attachments, $body, $s, false, $shared_links);
 		$s = self::addNonVisualAttachments($attachments, $item, $s, false);
@@ -2843,6 +2848,28 @@ class Item
 		return false;
 	}
 
+	/**
+	 * Replace visual attachments in the body
+	 *
+	 * @param array $attachments
+	 * @param string $body
+	 * @return string modified body
+	 */
+	private static function replaceVisualAttachments(array $attachments, string $body)
+	{
+		$stamp1 = microtime(true);
+
+		foreach ($attachments['visual'] as $attachment) {
+			if (!empty($attachment['preview'])) {
+				$body = str_replace($attachment['preview'], Post\Media::getPreviewUrlForId($attachment['id'], Proxy::SIZE_LARGE), $body);
+			} elseif ($attachment['filetype'] == 'image') {
+				$body = str_replace($attachment['url'], Post\Media::getUrlForId($attachment['id']), $body);
+			}
+		}
+		DI::profiler()->saveTimestamp($stamp1, 'rendering');
+		return $body;
+	}
+
 	/**
 	 * Add visual attachments to the content
 	 *
@@ -2864,7 +2891,7 @@ class Item
 			}
 
 			if (!empty($attachment['preview'])) {
-				$preview_url = Post\Media::getPreviewUrlForId($attachment['id'], Proxy::SIZE_LARGE); 
+				$preview_url = Post\Media::getPreviewUrlForId($attachment['id'], Proxy::SIZE_LARGE);
 			} else {
 				$preview_url = '';
 			}
@@ -2901,7 +2928,7 @@ class Item
 				}
 			} elseif ($attachment['filetype'] == 'image') {
 				$media = Renderer::replaceMacros(Renderer::getMarkupTemplate('content/image.tpl'), [
-					'$image' => [ 
+					'$image' => [
 						'src'        => Post\Media::getUrlForId($attachment['id']),
 						'preview'    => Post\Media::getPreviewUrlForId($attachment['id'], ($attachment['width'] > $attachment['height']) ? Proxy::SIZE_MEDIUM : Proxy::SIZE_LARGE),
 						'attachment' => $attachment,
@@ -2984,7 +3011,7 @@ class Item
 
 			if ($preview && !empty($attachment['preview'])) {
 				if ($attachment['preview-width'] >= 500) {
-					$data['image'] = Post\Media::getPreviewUrlForId($attachment['id'], Proxy::SIZE_MEDIUM); 
+					$data['image'] = Post\Media::getPreviewUrlForId($attachment['id'], Proxy::SIZE_MEDIUM);
 				} else {
 					$data['preview'] = Post\Media::getPreviewUrlForId($attachment['id'], Proxy::SIZE_MEDIUM);
 				}
diff --git a/src/Model/Photo.php b/src/Model/Photo.php
index acc6b0d197..fe416c360f 100644
--- a/src/Model/Photo.php
+++ b/src/Model/Photo.php
@@ -268,21 +268,22 @@ class Photo
 	 * Construct a photo array for an external resource image
 	 *
 	 * @param string $url      Image URL
+	 * @param int    $uid      User ID of the requesting person
 	 * @param string $mimetype Image mime type. Defaults to "image/jpeg"
 	 *
 	 * @return array
 	 * @throws \Exception
 	 */
-	public static function createPhotoForExternalResource($url, $mimetype = "image/jpeg")
+	public static function createPhotoForExternalResource($url, $uid = 0, $mimetype = "image/jpeg")
 	{
 		$fields = self::getFields();
 		$values = array_fill(0, count($fields), "");
 
 		$photo                  = array_combine($fields, $values);
 		$photo['backend-class'] = ExternalResource::NAME;
-		$photo['backend-ref']   = $url;
+		$photo['backend-ref']   = json_encode(['url' => $url, 'uid' => $uid]);
 		$photo['type']          = $mimetype;
-		$photo['cacheable']     = false;
+		$photo['cacheable']     = true;
 
 		return $photo;
 	}
diff --git a/src/Model/Storage/ExternalResource.php b/src/Model/Storage/ExternalResource.php
index 8d1aded151..5c78e6d546 100644
--- a/src/Model/Storage/ExternalResource.php
+++ b/src/Model/Storage/ExternalResource.php
@@ -22,6 +22,7 @@
 namespace Friendica\Model\Storage;
 
 use BadMethodCallException;
+use Friendica\Util\HTTPSignature;
 use Friendica\Network\IHTTPRequest;
 
 /**
@@ -45,16 +46,21 @@ class ExternalResource implements IStorage
 	/**
 	 * @inheritDoc
 	 */
-	public function get(string $filename)
+	public function get(string $reference)
 	{
-		$parts = parse_url($filename);
+		$data = json_decode($reference);
+		if (empty($data->url)) {
+			return "";
+		}
+
+		$parts = parse_url($data->url);
 		if (empty($parts['scheme']) || empty($parts['host'])) {
 			return "";
 		}
 
-		$curlResult = $this->httpRequest->get($filename);
-		if ($curlResult->isSuccess()) {
-			return $curlResult->getBody();
+		$fetchResult = HTTPSignature::fetchRaw($data->url, $data->uid);
+		if ($fetchResult->isSuccess()) {
+			return $fetchResult->getBody();
 		} else {
 			return "";
 		}
@@ -63,12 +69,12 @@ class ExternalResource implements IStorage
 	/**
 	 * @inheritDoc
 	 */
-	public function put(string $data, string $filename = '')
+	public function put(string $data, string $reference = '')
 	{
 		throw new BadMethodCallException();
 	}
 
-	public function delete(string $filename)
+	public function delete(string $reference)
 	{
 		throw new BadMethodCallException();
 	}
diff --git a/src/Module/Photo.php b/src/Module/Photo.php
index 9fdda1a8d0..f61a4564d6 100644
--- a/src/Module/Photo.php
+++ b/src/Module/Photo.php
@@ -171,17 +171,17 @@ class Photo extends BaseModule
 				$author = Contact::selectFirst([], ["`id` IN (SELECT `author-id` FROM `post` WHERE `uri-id` = ?)", $media['uri-id']]);
 				$url = Contact::magicLinkByContact($author, $url);
 
-				return MPhoto::createPhotoForExternalResource($url);
+				return MPhoto::createPhotoForExternalResource($url, (int)local_user());
 			case "media":
-				$media = DBA::selectFirst('post-media', ['url'], ['id' => $uid, 'type' => Post\Media::IMAGE]);
-				if (empty($media['url'])) {
+				$media = DBA::selectFirst('post-media', ['url', 'uri-id'], ['id' => $uid, 'type' => Post\Media::IMAGE]);
+				if (empty($media)) {
 					return false;
 				}
 
 				$author = Contact::selectFirst([], ["`id` IN (SELECT `author-id` FROM `post` WHERE `uri-id` = ?)", $media['uri-id']]);
 				$url = Contact::magicLinkByContact($author, $media['url']);
 
-				return MPhoto::createPhotoForExternalResource($url);
+				return MPhoto::createPhotoForExternalResource($url, (int)local_user());
 			case "contact":
 				$contact = Contact::getById($uid, ['uid', 'url', 'avatar', 'photo', 'xmpp', 'addr']);
 				if (empty($contact)) {