diff --git a/Core/Source/DTCSSStylesheet.m b/Core/Source/DTCSSStylesheet.m
index ad6f9dc81..0b363863e 100644
--- a/Core/Source/DTCSSStylesheet.m
+++ b/Core/Source/DTCSSStylesheet.m
@@ -826,7 +826,7 @@ - (NSMutableArray *)matchingComplexCascadingSelectorsForElement:(DTHTMLElement *
 	for (NSString *selector in _orderedSelectors)
 	{
 		// We only process the selector if our selector has more than 1 part to it (e.g. ".foo" would be skipped and ".foo .bar" would not)
-	        if (![selector containsString:@" "]) {
+	        if (![selector rangeOfString:@" "].length) {
         	    continue;
 	        }
 	        
diff --git a/Core/Source/DTLazyImageView.m b/Core/Source/DTLazyImageView.m
index 1c4e5c47a..401f56d2a 100644
--- a/Core/Source/DTLazyImageView.m
+++ b/Core/Source/DTLazyImageView.m
@@ -324,6 +324,13 @@ -(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
 - (void)removeFromSuperview
 {
 	[super removeFromSuperview];
+	
+#if DTCORETEXT_USES_NSURLSESSION
+	[_dataTask cancel];
+	[_session invalidateAndCancel];
+#else
+	[_connection cancel];
+#endif
 }
 
 #if DTCORETEXT_USES_NSURLSESSION
@@ -349,6 +356,7 @@ - (void)connectionDidFinishLoading:(NSURLConnection *)connection
 	}
 	
 #if DTCORETEXT_USES_NSURLSESSION
+	[_session finishTasksAndInvalidate];
 	_dataTask = nil;
 #else
 	_connection = nil;
@@ -367,6 +375,7 @@ - (void)connectionDidFinishLoading:(NSURLConnection *)connection
 - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
 {
 #if DTCORETEXT_USES_NSURLSESSION
+	[_session invalidateAndCancel];
 	_dataTask = nil;
 #else
 	_connection = nil;
diff --git a/Core/Source/default.css b/Core/Source/default.css
index b468de5de..b6c5fe4c4 100644
--- a/Core/Source/default.css
+++ b/Core/Source/default.css
@@ -42,7 +42,6 @@ article,aside,footer,header,hgroup,nav,section
 p
 {
 	display:block;
-	-webkit-margin-before:1em;
 	-webkit-margin-after:1em;
 	-webkit-margin-start:0;
 	-webkit-margin-end:0;
@@ -267,4 +266,4 @@ table {
    border-collapse: separate;
    border-spacing: 2px;
    border-color: gray;
-}
\ No newline at end of file
+}
diff --git a/DTCoreText.podspec b/DTCoreText.podspec
index 2c9e4d1ea..162d847c7 100644
--- a/DTCoreText.podspec
+++ b/DTCoreText.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |spec|
   spec.name         = 'DTCoreText'
-  spec.version      = '1.6.18'
+  spec.version      = '1.6.19'
   spec.platforms    = {:ios => '4.3', :tvos => '9.0' }
   spec.license      = 'BSD'
   spec.source       = { :git => 'https://github.com/Cocoanetics/DTCoreText.git', :tag => spec.version.to_s }
diff --git a/Demo/Source/DemoTextViewController.m b/Demo/Source/DemoTextViewController.m
index d8f6f020b..33d4d220b 100644
--- a/Demo/Source/DemoTextViewController.m
+++ b/Demo/Source/DemoTextViewController.m
@@ -753,7 +753,10 @@ - (void)lazyImageView:(DTLazyImageView *)lazyImageView didChangeImageSize:(CGSiz
 	if (didUpdate)
 	{
 		// layout might have changed due to image sizes
-		[_textView relayoutText];
+		// do it on next run loop because a layout pass might be going on
+		dispatch_async(dispatch_get_main_queue(), ^{
+			[_textView relayoutText];
+		});
 	}
 }