New answers tagged publishing-page
I was facing the exact same issue and resolved it by setting ReplaceContent="true" in the element.xml file of the module as below <File Path="MasterPageModule\MyMasterPage.master" Url="MyMasterPage.master" Type="GhostableInLibrary" ReplaceContent="TRUE" Level="Published"/> Also you can get it here ...
Here is my JSOM: factory = new SP.ProxyWebRequestExecutorFactory(appweburl); context.set_webRequestExecutorFactory(factory); appContextSite = new SP.AppContextSite(context, hostweburl); oWeb = appContextSite.get_web(); oList = oWeb.get_lists().getByTitle('pages'); fileCreateInfo = new SP.FileCreationInformation(); ...
Error is giving clue that Script editorWebpart is not working properly. Append the ?Contents=1 at then end of the URL, it will open the webpart maintinance page. On this page you will see all the web parts being used on the Page, you can try to close the SEWebpart and then try to reload the page.
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