HTTP Headers | TE

The HTTP TE(also known as Accept-Transfer-Encoding) is a request-type header that specifies the transfer encodings that the user is willing to accept. It is very similar to the Transfer-Encoding response header. The difference is that this header uses another directive called trailers which is very related to the chunked directive. Syntax:

TE: compress | deflate | gzip | trailers | q

Note: Multiple directives can be used. Directives: The HTTP TE header accepts five directives as mentioned above and described below:

• compress: It is a format that is accepted as a transfer-coding name using the Lempel-Ziv-Welch(LZW) algorithm.
• deflate: It is a format that is accepted as a transfer-coding name using the zlib structure.
• gzip: It is a 32-bit CRC format that is accepted as a transfer-coding name using the Lempel-Ziv-Welch(LZW) algorithm.
• trailers: It tells about the willingness to accept trailer fields in a chunked transfer-coding.
• q: When multiple directives are used then they are weighted by a quality value which is used to describe the priority of values.

Examples:

• When single directive is used.

  TE: trailers

• When multiple directives are used.

  TE: trailers, compress; q=0.67

To check the TE in action go to Inspect Element -> Network check the response header for TE like below. Supported Browsers: The browsers are compatible with HTTP header TE are listed below:

• Google Chrome
• Internet Explorer
• Microsoft Edge
• Firefox
• Opera
• Safari