diff --git a/tests/plugins/autoembed/manual/autoembed.html b/tests/plugins/autoembed/manual/autoembed.html
index 9f52542c7e8..080a0d54b0d 100644
--- a/tests/plugins/autoembed/manual/autoembed.html
+++ b/tests/plugins/autoembed/manual/autoembed.html
@@ -36,7 +36,8 @@
 		extraPlugins: 'embed',
 		height: 500,
 		// Make them narrow so images don't take too much space.
-		width: 600
+		width: 600,
+		embed_provider: '//ckeditor.iframe.ly/api/oembed?url={url}&callback={callback}'
 	} );
 
 	CKEDITOR.replace( 'editor2', {
@@ -44,6 +45,7 @@
 		extraPlugins: 'embedsemantic',
 		height: 500,
 		// Make them narrow so images don't take too much space.
-		width: 600
+		width: 600,
+		embed_provider: '//ckeditor.iframe.ly/api/oembed?url={url}&callback={callback}'
 	} );
 </script>
diff --git a/tests/plugins/autoembed/manual/notifications.html b/tests/plugins/autoembed/manual/notifications.html
index 382763070dc..6b550ad4103 100644
--- a/tests/plugins/autoembed/manual/notifications.html
+++ b/tests/plugins/autoembed/manual/notifications.html
@@ -19,6 +19,7 @@
 	CKEDITOR.replace( 'editor1', {
 		extraPlugins: 'embed',
 		height: 500,
-		width: 600
+		width: 600,
+		embed_provider: '//ckeditor.iframe.ly/api/oembed?url={url}&callback={callback}'
 	} );
 </script>
diff --git a/tests/plugins/autoembed/manual/spontaneousreembed.html b/tests/plugins/autoembed/manual/spontaneousreembed.html
index a9ccffeeea3..341eef299f9 100644
--- a/tests/plugins/autoembed/manual/spontaneousreembed.html
+++ b/tests/plugins/autoembed/manual/spontaneousreembed.html
@@ -18,6 +18,7 @@
 		extraPlugins: 'embed',
 		height: 500,
 		// Make them narrow so images don't take too much space.
-		width: 600
+		width: 600,
+		embed_provider: '//ckeditor.iframe.ly/api/oembed?url={url}&callback={callback}'
 	} );
-</script>
\ No newline at end of file
+</script>
diff --git a/tests/plugins/autoembed/manual/undoautoembed.html b/tests/plugins/autoembed/manual/undoautoembed.html
index 15bf45876a7..3a8d9299bbe 100644
--- a/tests/plugins/autoembed/manual/undoautoembed.html
+++ b/tests/plugins/autoembed/manual/undoautoembed.html
@@ -12,6 +12,7 @@
 	CKEDITOR.replace( 'editor1', {
 		extraPlugins: 'embed',
 		height: 500,
-		width: 600
+		width: 600,
+		embed_provider: '//ckeditor.iframe.ly/api/oembed?url={url}&callback={callback}'
 	} );
 </script>
diff --git a/tests/plugins/embed/manual/embed.html b/tests/plugins/embed/manual/embed.html
index 9ccfd2f25e4..83e67fe8872 100644
--- a/tests/plugins/embed/manual/embed.html
+++ b/tests/plugins/embed/manual/embed.html
@@ -44,9 +44,10 @@
 			extraPlugins: 'wysiwygarea,sourcearea,htmlwriter,entities,toolbar,elementspath,undo,clipboard,format,basicstyles,image2,embed',
 			height: 500,
 			// Make them narrow so images don't take too much space.
-			width: 600
+			width: 600,
+			embed_provider: '//ckeditor.iframe.ly/api/oembed?url={url}&callback={callback}'
 		};
 		CKEDITOR.replace( 'editor1', cfg );
 		CKEDITOR.replace( 'editor2', cfg );
 	} )();
-</script>
\ No newline at end of file
+</script>
diff --git a/tests/plugins/embed/manual/iframefocus.html b/tests/plugins/embed/manual/iframefocus.html
index 80ab4e5e5c4..87c85b4e0eb 100644
--- a/tests/plugins/embed/manual/iframefocus.html
+++ b/tests/plugins/embed/manual/iframefocus.html
@@ -22,5 +22,7 @@
 <p><button>Focus indicator</button></p>
 
 <script>
-	CKEDITOR.replace( 'editor1' );
+	CKEDITOR.replace( 'editor1', {
+		embed_provider: '//ckeditor.iframe.ly/api/oembed?url={url}&callback={callback}'
+	} );
 </script>
diff --git a/tests/plugins/embedsemantic/manual/embedsemantic.html b/tests/plugins/embedsemantic/manual/embedsemantic.html
index 2b48067df1a..4cdd50cd263 100644
--- a/tests/plugins/embedsemantic/manual/embedsemantic.html
+++ b/tests/plugins/embedsemantic/manual/embedsemantic.html
@@ -39,9 +39,10 @@
 			extraPlugins: 'wysiwygarea,sourcearea,htmlwriter,entities,toolbar,elementspath,undo,clipboard,format,basicstyles,image2,embedsemantic',
 			height: 500,
 			// Make them narrow so images don't take too much space.
-			width: 600
+			width: 600,
+			embed_provider: '//ckeditor.iframe.ly/api/oembed?url={url}&callback={callback}'
 		};
 		CKEDITOR.replace( 'editor1', cfg );
 		CKEDITOR.replace( 'editor2', cfg );
 	} )();
-</script>
\ No newline at end of file
+</script>
diff --git a/tests/tickets/13158/1.html b/tests/tickets/13158/1.html
index e7d01bddd36..996e5d56458 100644
--- a/tests/tickets/13158/1.html
+++ b/tests/tickets/13158/1.html
@@ -3,5 +3,7 @@
 </div>
 
 <script>
-	CKEDITOR.replace( 'editor' );
+	CKEDITOR.replace( 'editor', {
+		embed_provider: '//ckeditor.iframe.ly/api/oembed?url={url}&callback={callback}'
+	} );
 </script>