Hi- I have observed that if there are multiple plugins in a remap plugin chain, TSHttpTxnEffectiveUrlStringGet() in the 1st plugin gets the unmapped URL, while in all other plugins it gets the mapped URL. Of course we can instead use TSHttpTxnPristineUrlGet() to get the original URL. But many plugins like regex_remap and cacheurl use this EffectiveUrl as request URL and thus they may get either mapped or unmapped URL depending on the position they are in the plugin chain.
ATS code shows that in RemapPlugins::run_single_remap(), in many cases it invokes url_rewrite_remap_request() to rewrite the request URL after the 1st plugin is run. Even the first plugin does nothing, the request URL is still modified. Why ATS needs the above logic (“After running the first plugin, rewrite the request URL.”)? If this logic is required, is it valid that an empty plugin which does nothing should affect the request URL? Thanks, John
