PrimeFaces Mobile 反向幻灯片过渡给我“对实体 "reverse" 的引用必须以 ';' 结尾分隔符。

PrimeFaces Mobile reverse slide transition gives me ´The reference to entity "reverse" must end with the ';' delimiter.´

我想要一个类型为 slide reversed 的过渡:

<p:button outcome="pm:first?transition=slide&reverse=true" value="Back" icon="ui-icon-arrow-l" styleClass="ui-btn-left ui-btn-inline"/>

但是我得到这个错误:

20:47:09,976 ERROR [io.undertow.request] (default task-38) UT005023: Exception handling request to /test-web/: javax.servlet.ServletException: Error Parsing /views/index.xhtml: Error Traced[line: 32] The reference to entity "reverse" must end with the ';' delimiter.
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:671)
    at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
    ...
    ...

我找到了解决方案 here: 我只是用 &amp; 替换了 & 所以我不得不这样写:

<p:button outcome="pm:first?transition=slide&amp;reverse=true" value="Back" icon="ui-icon-arrow-l" styleClass="ui-btn-left ui-btn-inline"/>