We get the following error when files are loaded in our application on a frequent, intermittent basis. All files are in xod format. Given that it is intermittent I don't think that the problem is with our file server, although I'm not ruling that out. Sometimes the error only appears in the browser console and does not stop the document from loading. Other times it appears as an error in the web viewer itself, which is particularly bad as the end user then has to select another document or reload the browser to get rid of the error.
Invalid XOD file: Zip end header data is wrong size!
at Object.onError (CoreControls.js:1123)
You can see the problem if you go to https://app.docsontap.com.au
and use the trial option. If you have the browser console open and select different documents then you should find the error appears soon enough. The error appears to happen more often if you just refresh the browser after having already viewed a document.
I've read other posts on this issue and none of them seem to resolve the problem. Do you have any suggestions? I'm happy to post the code for our file server - it is just a simple http server written in node - if that helps.