Page on Dev Server posts back to local machine

Clicking the save button on my webform that's on our dev server:
http://DevServer/Page.aspx
Posts back to the same page on my local machine:
http://LocalMachine/Page.aspx


Any suggestions?  How does the DevServer even know my computer exists?  I haven't hardcoded any URLS in my code.  It occurs in any browser.


Thanks

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