Question

all of a sudden gwt components have stopped rendering after our yesterdays’ deployment to google app engine for java.

we have tried many times. and on looking into firebug i see

Error: Permission denied to access property ‘document’
http://1-ps.googleusercontent.com/x/s.sakshumweb-hrd.appspot.com/www.sakshum.org/sakshumwebgae/B365B696BAAE7DD00F53BC81F86AF51C.cache.html
Line 2860

i am not sure why this is happening. can some one please advise

The allowed static file is

<static-files>
        <include path="/**.xml" expiration="30d 1h" />
        <include path="/**.txt" expiration="30d 1h" />
        <include path="/**.html" expiration="30d 1h" />
        <include path="/favicon.ico" expiration="30d 1h"/>
        <include path="/**.ico" expiration="30d 1h" />
    <include path="/**.js" expiration="30d 1h" />
    <include path="/**.css" expiration="30d 1h" />
    <include path="/**.gif" expiration="30d 1h" />
    <include path="/**.JPG" expiration="30d 1h" />
    <include path="/**.jpg" expiration="30d 1h" />
    <include path="/**.jpeg" expiration="30d 1h" />
    <include path="/**.png" expiration="30d 1h" />
     <include path="/**.htc" expiration="30d 1h" />
     <include path="*.nocache." expiration="0s" />
     <include path="*.cache." expiration="365d" />
     <exclude path="**.gwt.rpc" />
</static-files>

Answer 1

The .cache.js is loaded cross-origin (from www.sakshum.org to 1-ps.googleusercontent.com. That ps in the URL probably stands for Page Speed, which rewrites links to static assets.

I don’t know how it works on GAE/J but either disbale Page Speed (if possible), or recompile your app using the xsiframe linker (in your gwt.xml):

<add-linker name="xsiframe" />