like this?
~/dev/sandbox/wicket-trunk$ jsvn diff
Index: wicket/src/main/java/org/apache/wicket/Application.java
===================================================================
--- wicket/src/main/java/org/apache/wicket/Application.java (revision
800428)
+++ wicket/src/main/java/org/apache/wicket/Application.java (working
copy)
@@ -33,6 +33,7 @@
import org.apache.wicket.application.IComponentOnBeforeRenderListener;
import org.apache.wicket.javascript.DefaultJavascriptCompressor;
import org.apache.wicket.markup.IMarkupCache;
+import org.apache.wicket.markup.html.EmptySrcAttributeFilter;
import org.apache.wicket.markup.html.IHeaderContributor;
import org.apache.wicket.markup.html.IHeaderResponse;
import
org.apache.wicket.markup.html.image.resource.DefaultButtonImageResourceFactory;
@@ -348,6 +349,8 @@
getDebugSettings().setDevelopmentUtilitiesEnabled(true);
// getDebugSettings().setOutputMarkupContainerClassName(true);
getResourceSettings().setJavascriptCompressor(null);
+ getRequestCycleSettings().addResponseFilter(
+ EmptySrcAttributeFilter.LOG_EMPTY_SRC_ATTRIBUTE);
}
else if (DEPLOYMENT.equalsIgnoreCase(configurationType))
{
Index:
wicket/src/main/java/org/apache/wicket/markup/html/EmptySrcAttributeFilter.java
===================================================================
---
wicket/src/main/java/org/apache/wicket/markup/html/EmptySrcAttributeFilter.java
(revision 0)
+++
wicket/src/main/java/org/apache/wicket/markup/html/EmptySrcAttributeFilter.java
(revision 0)
@@ -0,0 +1,50 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.wicket.markup.html;
+
+import org.apache.wicket.IResponseFilter;
+import org.apache.wicket.util.string.AppendingStringBuffer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+public class EmptySrcAttributeFilter implements IResponseFilter
+{
+ private static final Logger log =
LoggerFactory.getLogger(EmptySrcAttributeFilter.class);
+
+ /**
+ * Indicates that an exception page appropriate to development should
be shown when an
+ * unexpected exception is thrown.
+ */
+ public static final EmptySrcAttributeFilter LOG_EMPTY_SRC_ATTRIBUTE =
new EmptySrcAttributeFilter();
+
+ /**
+ * @see org.apache.wicket.IResponseFilter#filter(AppendingStringBuffer)
+ */
+ public AppendingStringBuffer filter(AppendingStringBuffer
responseBuffer)
+ {
+ int emptySrcIndex = responseBuffer.indexOf("src=\"\"");
+ if (emptySrcIndex != -1)
+ {
+ log.warn("Empty src attribute found in response:");
+ int from = Math.max(0, emptySrcIndex - 10);
+ int to = Math.min(emptySrcIndex + 10, responseBuffer.length());
+ log.warn(responseBuffer.substring(from, to));
+ }
+ return responseBuffer;
+ }
+}
\ No newline at end of file
2009/8/3 Igor Vaynberg <igor.vaynb...@gmail.com>
> it should be possible to create an IResponseFilter that checks for
> this and reports the error in dev mode.
>
> -igor
>
> On Mon, Aug 3, 2009 at 8:00 AM, Martin Funk<mafulaf...@googlemail.com>
> wrote:
> > I know its been talked about before
> >
> http://cwiki.apache.org/WICKET/best-practices-and-gotchas.html#BestPracticesandGotchas-Gotchas
> >
> > Just had to restate it, make myself remember.
> >
> > mf
> >
>
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>
>
