TYPO3 Core

Externally-referenced files such as

page.includeJSlibs { 
    jquery = http://code.jquery.com/jquery-1.6.1.min.js
    jquery.external = 1
}

fail to be concatenated/compressed because the "external" flag is lost in tslib_pagegen, around line 693.

This is the case if one activates compression and/or concatenation:

config.compressJs = 1
config.concatenateJs = 1

The compressor then searches for a local file, cannot find it by prepending TYPO3_path and thus fails to handle it.

If compression/concatenation is not deactivated, it should naturally be locally stored prior to being concatenated/compressed or should alternatively be dynamically retrieved and compressed/concatenated on the fly.

The same applies for external CSS files