Upgradation to GWT 2.7 Shows blank page

Recently i migrated my gwt application from GWT 2.5 to GWT 2.7 .Moved most of the script js from *.gwt.xml to html hostpage and added <set-configuration-property name='xsiframe.failIfScriptTag' value='FALSE'/> tag to make compilation success .After the deployment when i hit the hostpage it showing the blank page.Is there anythink which i need to configure?

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