Add a new send headers common helper and use the same wrt the
overridden send_error as well as do_OPTIONS
This ensures that if there is any error during proxy opertions,
the send_error propogates to the fetch from any browser properly
without browser intercepting it with a CORS error
First identify lines which have only whitespace and replace them
with lines with only newline char in them.
Next strip out adjacent lines, if they have only newlines
As html can be malformed, xml ElementTree XMLParser cant handle
the same properly, so switch to the HtmlParser helper class that is
provided by python and try extend it.
Currently a minimal skeleton to just start it out, which captures
only the body contents.
Declare the result of UrlReq as a DataClass, so that one doesnt
goof up wrt updating and accessing members.
Duplicate UrlRaw into UrlText, need to add Text extracting from
html next for UrlText
hanishkvc