Dear Friends, I did not have problems with this issue until yesterday.
I always use this function, yesterday I make an update, and when they try to login always the same problem. they can not login.
Now I try to take out render and it works, but I need this running with this check.
The error I take is this one.
api.appery.io/rest/1/proxy/tunnel?username=&password=:1 GET https://api.appery.io/rest/1/proxy/tu...= 400 (Bad Request)
Thanks
Pedro
Hello Pedro,
It looks like you send empty request parameters to the server.
Please check if there are any errors in the browser console. You can learn here: https://devcenter.appery.io/documenta... how to open the console.
Dear Sergiy, yes you are right, it seems that is this. The only thing is that If I check Render all pages I have this error.
But If I do not check render all pages, it works.
So underestand that this 1 month ago was working and now it does not work, just to check or uncheck this. So maybe in las maintenance something wrong.
Can you check this on your side.
Thanks
Pedro
Dear Sergiy, I was looking, and it seems that when now you put render in one HTML, you can not setstoragevariable, it does not work.
PLease check your side 
It works on the new empty application. I just tested it. Please check all JS in your application for that.
We are very sorry, but debugging users' application is something outside the scope (http://devcenter.appery.io/support-po...) of our standard support.
I do not underestand this very well. My friends this is not any debugging I can do.
1 month ago this works. Now it doesn't work. I did not touch anything, not errors on my APP JS as I did not put any new JS.
During this month you make an upgrade, just check carefully
Did you try this in not new APP??
Becasue If I did't touch anythig and now it is not working what I can check?????
Just incredible.
Something happends to me at the begining and was Appery Bug and I had to remake again the APP. Appery tell to me they were sorry. Hope this not happend again.
Thanks
Hello -
When you use storage variables invocation on different screens inside your app -- these variables are no longer existing in separate page scope when you're enabling "Render all pages in one HTML file" (jQuery Mobile multi-page option). This could causing such behavior in your app.
If you need further help with investigation of the matter here with more details, we can help you through our Advisory Pack service: http://appery.io/service.