Pass user's input from textarea(all rows) to URL

Pass user's input from textarea(all rows) to URL

I know how to pass only the first row of a textarea to URL.But is it
possible to pass all of the rows that user may have inserted to
URL?Probably i will need javascript.
<form id="form1" action="http://site.com/" target="_blank">
<textarea rows="5" name="abc"></textarea>
<button type="submit">Submit</button>
</form>
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