diff --git a/dwpost/dwpost.php b/dwpost/dwpost.php
index 286d80127..bab93dff9 100644
--- a/dwpost/dwpost.php
+++ b/dwpost/dwpost.php
@@ -17,6 +17,7 @@ use Friendica\DI;
 use Friendica\Model\Post;
 use Friendica\Model\Tag;
 use Friendica\Model\User;
+use Friendica\Network\HTTPClient\Client\HttpClientAccept;
 use Friendica\Util\DateTimeFormat;
 use Friendica\Util\XML;
 
@@ -192,7 +193,7 @@ EOT;
 		Logger::debug('dwpost: data: ' . $xml);
 
 		if ($dw_blog !== 'test') {
-			$x = DI::httpClient()->post($dw_blog, $xml, ['Content-Type' => 'text/xml'])->getBody();
+			$x = DI::httpClient()->post($dw_blog, $xml, HttpClientAccept::DEFAULT, ['Content-Type' => 'text/xml'])->getBody();
 		}
 
 		Logger::info('posted to dreamwidth: ' . ($x) ? $x : '');
diff --git a/ijpost/ijpost.php b/ijpost/ijpost.php
index 79cd75c89..832dff2c7 100644
--- a/ijpost/ijpost.php
+++ b/ijpost/ijpost.php
@@ -16,6 +16,7 @@ use Friendica\Core\Renderer;
 use Friendica\DI;
 use Friendica\Model\Tag;
 use Friendica\Model\User;
+use Friendica\Network\HTTPClient\Client\HttpClientAccept;
 use Friendica\Util\DateTimeFormat;
 use Friendica\Util\XML;
 
@@ -186,7 +187,7 @@ EOT;
 		Logger::debug('ijpost: data: ' . $xml);
 
 		if ($ij_blog !== 'test') {
-			$x = DI::httpClient()->post($ij_blog, $xml, ['Content-Type' => 'text/xml'])->getBody();
+			$x = DI::httpClient()->post($ij_blog, $xml, HttpClientAccept::DEFAULT, ['Content-Type' => 'text/xml'])->getBody();
 		}
 		Logger::info('posted to insanejournal: ' . $x ? $x : '');
 	}
diff --git a/ljpost/ljpost.php b/ljpost/ljpost.php
index 073a977e8..2fa5e782b 100644
--- a/ljpost/ljpost.php
+++ b/ljpost/ljpost.php
@@ -17,6 +17,7 @@ use Friendica\DI;
 use Friendica\Model\Post;
 use Friendica\Model\Tag;
 use Friendica\Model\User;
+use Friendica\Network\HTTPClient\Client\HttpClientAccept;
 use Friendica\Util\DateTimeFormat;
 use Friendica\Util\XML;
 
@@ -206,7 +207,7 @@ EOT;
 		Logger::debug('ljpost: data: ' . $xml);
 
 		if ($lj_blog !== 'test') {
-			$x = DI::httpClient()->post($lj_blog, $xml, ['Content-Type' => 'text/xml'])->getBody();
+			$x = DI::httpClient()->post($lj_blog, $xml, HttpClientAccept::DEFAULT, ['Content-Type' => 'text/xml'])->getBody();
 		}
 		Logger::info('posted to livejournal: ' . ($x) ? $x : '');
 	}
diff --git a/mailstream/mailstream.php b/mailstream/mailstream.php
index 33959e1e5..60d6412b4 100644
--- a/mailstream/mailstream.php
+++ b/mailstream/mailstream.php
@@ -19,6 +19,7 @@ use Friendica\Model\Contact;
 use Friendica\Model\Item;
 use Friendica\Model\Post;
 use Friendica\Model\User;
+use Friendica\Network\HTTPClient\Client\HttpClientAccept;
 use Friendica\Protocol\Activity;
 use Friendica\Util\DateTimeFormat;
 
@@ -207,7 +208,7 @@ function mailstream_do_images(&$item, &$attachments)
 			continue;
 		}
 		$cookiejar = tempnam(System::getTempPath(), 'cookiejar-mailstream-');
-		$curlResult = DI::httpClient()->fetchFull($url, 0, '', $cookiejar);
+		$curlResult = DI::httpClient()->fetchFull($url, HttpClientAccept::DEFAULT, 0, $cookiejar);
 		$attachments[$url] = [
 			'data' => $curlResult->getBody(),
 			'guid' => hash("crc32", $url),
diff --git a/pumpio/pumpio.php b/pumpio/pumpio.php
index 62ad77120..1253d376a 100644
--- a/pumpio/pumpio.php
+++ b/pumpio/pumpio.php
@@ -22,6 +22,7 @@ use Friendica\Model\Group;
 use Friendica\Model\Item;
 use Friendica\Model\Post;
 use Friendica\Model\User;
+use Friendica\Network\HTTPClient\Client\HttpClientAccept;
 use Friendica\Network\HTTPClient\Client\HttpClientOptions;
 use Friendica\Protocol\Activity;
 use Friendica\Protocol\ActivityNamespace;
@@ -1487,7 +1488,7 @@ function pumpio_fetchallcomments(App $a, $uid, $id)
 
 function pumpio_reachable($url)
 {
-	return DI::httpClient()->get($url, [HttpClientOptions::TIMEOUT => 10])->isSuccess();
+	return DI::httpClient()->get($url, HttpClientAccept::DEFAULT, [HttpClientOptions::TIMEOUT => 10])->isSuccess();
 }
 
 /*
diff --git a/statusnet/statusnet.php b/statusnet/statusnet.php
index b2582b86e..6fc1469c2 100644
--- a/statusnet/statusnet.php
+++ b/statusnet/statusnet.php
@@ -56,6 +56,7 @@ use Friendica\Model\Item;
 use Friendica\Model\Photo;
 use Friendica\Model\Post;
 use Friendica\Model\User;
+use Friendica\Network\HTTPClient\Client\HttpClientAccept;
 use Friendica\Protocol\Activity;
 use Friendica\Util\DateTimeFormat;
 use Friendica\Util\Strings;
@@ -1367,7 +1368,7 @@ function statusnet_convertmsg(App $a, $body)
 			} elseif ($oembed_data->type != "link") {
 				$body = str_replace($search, "[url=" . $expanded_url . "]" . $expanded_url . "[/url]", $body);
 			} else {
-				$img_str = DI::httpClient()->fetch($expanded_url, 4);
+				$img_str = DI::httpClient()->fetch($expanded_url, HttpClientAccept::DEFAULT, 4);
 
 				$tempfile = tempnam(System::getTempPath(), "cache");
 				file_put_contents($tempfile, $img_str);
diff --git a/webdav_storage/src/WebDav.php b/webdav_storage/src/WebDav.php
index de9fc4769..2e6b5b4e5 100644
--- a/webdav_storage/src/WebDav.php
+++ b/webdav_storage/src/WebDav.php
@@ -6,6 +6,7 @@ use Exception;
 use Friendica\Core\Storage\Capability\ICanWriteToStorage;
 use Friendica\Core\Storage\Exception\ReferenceStorageException;
 use Friendica\Core\Storage\Exception\StorageException;
+use Friendica\Network\HTTPClient\Client\HttpClientAccept;
 use Friendica\Network\HTTPClient\Client\HttpClientOptions;
 use Friendica\Network\HTTPClient\Capability\ICanSendHttpRequests;
 use Friendica\Util\Strings;
@@ -85,7 +86,7 @@ class WebDav implements ICanWriteToStorage
 	 */
 	protected function exists(string $uri): bool
 	{
-		return $this->client->head($uri, [HttpClientOptions::AUTH => $this->authOptions])->getReturnCode() == 200;
+		return $this->client->head($uri, HttpClientAccept::DEFAULT, [HttpClientOptions::AUTH => $this->authOptions])->getReturnCode() == 200;
 	}
 
 	/**
@@ -110,7 +111,7 @@ class WebDav implements ICanWriteToStorage
 			HttpClientOptions::BODY    => $dom->saveXML(),
 		];
 
-		$response = $this->client->request('propfind', $uri, $opts);
+		$response = $this->client->request('propfind', $uri, HttpClientAccept::DEFAULT, $opts);
 
 		$responseDoc = new \DOMDocument();
 		$responseDoc->loadXML($response->getBody());
@@ -133,7 +134,7 @@ class WebDav implements ICanWriteToStorage
 	 */
 	protected function mkcol(string $uri): bool
 	{
-		return $this->client->request('mkcol', $uri, [HttpClientOptions::AUTH => $this->authOptions])
+		return $this->client->request('mkcol', $uri, HttpClientAccept::DEFAULT, [HttpClientOptions::AUTH => $this->authOptions])
 							->getReturnCode() == 200;
 	}
 
@@ -177,7 +178,7 @@ class WebDav implements ICanWriteToStorage
 		foreach ($pathParts as $pathPart) {
 			$checkUrl = $this->url . $partURL;
 			if (!empty($partURL) && !$this->hasItems($checkUrl)) {
-				$response = $this->client->request('delete', $checkUrl, [HttpClientOptions::AUTH => $this->authOptions]);
+				$response = $this->client->request('delete', $checkUrl, HttpClientAccept::DEFAULT, [HttpClientOptions::AUTH => $this->authOptions]);
 
 				if (!$response->isSuccess()) {
 					if ($response->getReturnCode() == "404") {
@@ -199,7 +200,7 @@ class WebDav implements ICanWriteToStorage
 	{
 		$file = $this->pathForRef($reference);
 
-		$response = $this->client->request('get', $this->url . '/' . $file[0], [HttpClientOptions::AUTH => $this->authOptions]);
+		$response = $this->client->request('get', $this->url . '/' . $file[0], HttpClientAccept::DEFAULT, [HttpClientOptions::AUTH => $this->authOptions]);
 
 		if (!$response->isSuccess()) {
 			throw new ReferenceStorageException(sprintf('Invalid reference %s', $reference));
@@ -229,7 +230,7 @@ class WebDav implements ICanWriteToStorage
 			HttpClientOptions::AUTH => $this->authOptions,
 		];
 
-		$this->client->request('put', $this->url . '/' . $file[0], $opts);
+		$this->client->request('put', $this->url . '/' . $file[0], HttpClientAccept::DEFAULT, $opts);
 
 		return $reference;
 	}
@@ -241,7 +242,7 @@ class WebDav implements ICanWriteToStorage
 	{
 		$file = $this->pathForRef($reference);
 
-		$response = $this->client->request('delete', $this->url . '/' . $file[0], [HttpClientOptions::AUTH => $this->authOptions]);
+		$response = $this->client->request('delete', $this->url . '/' . $file[0], HttpClientAccept::DEFAULT, [HttpClientOptions::AUTH => $this->authOptions]);
 
 		if (!$response->isSuccess()) {
 			throw new ReferenceStorageException(sprintf('Invalid reference %s', $reference));
diff --git a/webdav_storage/src/WebDavConfig.php b/webdav_storage/src/WebDavConfig.php
index 2236e97ab..4a0c3c679 100644
--- a/webdav_storage/src/WebDavConfig.php
+++ b/webdav_storage/src/WebDavConfig.php
@@ -5,6 +5,7 @@ namespace Friendica\Addon\webdav_storage\src;
 use Friendica\Core\Config\Capability\IManageConfigValues;
 use Friendica\Core\L10n;
 use Friendica\Core\Storage\Capability\ICanConfigureStorage;
+use Friendica\Network\HTTPClient\Client\HttpClientAccept;
 use Friendica\Network\HTTPClient\Client\HttpClientOptions;
 use Friendica\Network\HTTPClient\Capability\ICanSendHttpRequests;
 
@@ -138,7 +139,7 @@ class WebDavConfig implements ICanConfigureStorage
 			];
 		}
 
-		if (!$this->client->head($url, [HttpClientOptions::AUTH => $options])->isSuccess()) {
+		if (!$this->client->head($url, HttpClientAccept::DEFAULT, [HttpClientOptions::AUTH => $options])->isSuccess()) {
 			return [
 				'url' => $this->l10n->t('url is either invalid or not reachable'),
 			];