I have created a sp 2013 survey list. I testen this url to fill in the questions:
http://myCompany.com/Lists/MySurvey/NewForm.aspx?isdlg=0&Source=http://www.google.com
After I submit the form I only see a blanco page. The survey did not redirected to the source query string. Do I miss something?
I think that this is a question about security as this could be a potent risk redirecting a user to anywhere ( or anything ) on the web.
This was considered a potential security vulnerability by Microsoft a couple of years ago for SharePoint 2007 and 2010 so in 2013, a cross site redirect is being prevented by default.
Insecure Redirect in Microsoft Sharepoint
Microsoft Security Bulletin MS11-074
The Source parameter is correct, however the source parameter works only for URL'S in the same web application, etc sub sites, pages, other site collections.
If you wanna do a redirect to another web application or a external URL you have to go with custom code, like JavaScript.
Or you could simple create a page based on the template "Redirect" (Sp2013), enter any external URL/web application of yours and simple redirect your form to this page and then from this page, redirect the users anywhere.
However the default time for a redirect is 5 second for the OOTB redirect template.
A example applicable for you could be
http://myCompany.com/Lists/MySurvey/NewForm.aspx?isdlg=0&Source=http://myCompany.com/pages/redirect.aspx
If you are on SharePoint 2007 or 2010, you could create a simple page and use this code in a txt file that you connect to a content editor web part on the page. You can define how fast the redirect should trigger by setting "content" to any number.
<meta http-equiv="refresh" content="3;url=http://anyUrl">
This works as well in the script editor web part for 2013, however i think it's best to have the code connect through a txt file, otherwise you will have a hard time to reach the page if you like to do some changes in the future.
If a survey includes page breaks (i.e. uses branching logic or the "page separator" question type), the "Source" URL query string parameter is discarded as the user progresses through the survey (e.g. clicks the "Next" button).
Because a list item is created and updated as the user completes a survey, the "Next" button triggers a post-back using the WebForm_DoPostBackWithOptions() function. Options for the post-back are defined using the WebForm_PostBackOptions() function. To my knowledge, neither of these functions offer any way to ensure preservation of URL query string parameters.
This default behavior is unrelated to cross-site security concerns and simply a matter of the form not handling unexpected URL query string parameters.
