image encoded in data-uri from ACID2 fails

[hrj]

This data URI fails to decode:

data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAABACAIAAAFSDNYfAAAAaklEQVR42u3XQQrAIAwAQeP%2F%2F6wf8CJBJTK9lnQ7FpHGaOurt1I34nfH9pMMZAZ8BwMGEvvh%2BBsJCAgICLwIOA8EBAQEBAQEBAQEBK79H5RfIQAAAAAAAAAAAAAAAAAAAAAAAAAAAID%2FABMSqAfj%2FsLmvAAAAABJRU5ErkJggg%3D%3D

Exception is:

java.lang.IllegalArgumentException: Illegal base64 character 25
    at java.util.Base64$Decoder.decode0(Base64.java:714)
    at java.util.Base64$Decoder.decode(Base64.java:526)
    at java.util.Base64$Decoder.decode(Base64.java:549)
    at org.lobobrowser.protocol.data.DataURLConnection.loadHeaderMap(DataURLConnection.java:79)
    at org.lobobrowser.protocol.data.DataURLConnection.<init>(DataURLConnection.java:31)
    at org.lobobrowser.protocol.data.Handler.openConnection(Handler.java:24)
    at java.net.URL.openConnection(URL.java:972)
    at org.lobobrowser.request.RequestEngine.getURLConnection(RequestEngine.java:654)
    at org.lobobrowser.request.RequestEngine.processHandler(RequestEngine.java:760)
    at org.lobobrowser.request.RequestEngine.access$1(RequestEngine.java:744)
    at org.lobobrowser.request.RequestEngine$RequestHandlerTask.lambda$0(RequestEngine.java:1078)
    at org.lobobrowser.request.RequestEngine$RequestHandlerTask$$Lambda$28/1446252515.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at org.lobobrowser.request.RequestEngine$RequestHandlerTask.run(RequestEngine.java:1084)
    at org.lobobrowser.util.SimpleThreadPool$ThreadRunnable.run(SimpleThreadPool.java:129)
    at java.lang.Thread.run(Thread.java:745)

[hrj]

test-case

It seems like other browsers perform a URL decode before doing the Base64 decode. I couldn't find any description of it in the specification, nor in the errata.

With the URL-Decode step, the test case passes.