Support of setting "Content-*" headers in transaction tags

[hatskier]

Currently, it's possible to set the "Content-Type" tag as the transaction data content type. It's used as an HTTP header when the transaction data is rendered in a browser.

It would be nice to enable support for all other "Content-*" headers (esp. "Content-Encoding"). It will be very useful because senders will be able to compress their data with gzip and set "Content-Encoding: gzip". This way the browsers will automatically decompress tx data using gzip algorithm while rendering the tx data. This approach may help to save more than 50% on tx rewards.

[webjunkie]

Was this ever approached? For me it seems to still not be supported.