In the batch tool a user agent can be defined.
In the editor I'm not aware of a similar setting.
As a consequence I can get validation messages in batch mode that cannot be checked in the editor.
Example: I have an ASPX page partly written by me and partly by third party page components. (I don't have the source of the third party material.) The third party tools inject several script blocks and other things into the page. What is inserted depends of the browser, as identified by the UA string.
When I get exception messages, I can't use the CSE Editor to read the page. Instead I use a browser and check source in that.
It would be useful to set UA when the editor fetches pages (from the web), in version 8.



