Question

I am using Gwt 2.4. After compiling my project i am getting some document.write lines in the mymodle.chache.js which is most weired .

So i want to know the places which producing these lines in my GWT code and came across and found some lines of code like

element.setInnerHtml("blah ..blah..");

and

doc.write("blah..blah ..");

So i removed those line of code and compiled again again and still getting some (ex:document.write(df+er+t)) lines .

Anyone suggest a way to find the cause to producing those lines from my GWT ??

Answer 1

(assuming you’re talking about the *.nocache.js file rather than the *.cache.* files, as *.cache.* don’t contain calls to document.write, unless you’re using a crappy third-party lib)

The *.nocache.js file is generated by the primary linker, so its content is independent from your code. It contains calls to document.write() for various things: determine your module base URL (as a last resort, when it cannot infer it from elsewhere), inject scripts and stylesheets referenced from your *.gwt.xml files, and finally inject the GWT application code itself (with the standard linker, this will be an <iframe>, with the newer xsiframe linker it’ll be a <script>).
If you’re really worried about it, it can be customized quite easily by extending the CrossSiteIframeLinker (xsiframe linker) and providing different code snippets.

Tip: compile with -style PRETTY to make the generated code readable.