I can't currently find what I was reading that showed me that HEAD gets an 
e-tag, but this blog indicates it does:

http://joshua.schachter.org/2006/11/apache-etags

But I did use this one in my research. It explains why the Etag doesn't 
usually show up with a PUT.

https://stackoverflow.com/questions/42246577/why-responses-to-put-requests-must-not-provide-an-etag

The apache docs location should be obvious. I had to read the cache control 
and mod_dav, mod_dav_fs, and mod_headers section to sort out that Apache is 
not able to confirm that what as sent in the PUT will be exactly what is 
returned for the next GET request. So, no etag header.

I can show (because I tested) that the HEAD method does appear to return an 
etag.

<https://lh3.googleusercontent.com/-5ZPzczsXCwY/WeeS3TtXGWI/AAAAAAAAAHQ/ZSzyiZTI3KAA4g1wuPth9lrbo1ZlO3tPwCLcBGAs/s1600/head.PNG>



On Wednesday, October 18, 2017 at 11:26:19 AM UTC-4, PMario wrote:
>
> On Wednesday, October 18, 2017 at 3:12:00 PM UTC+2, Lost Admin wrote:
>>
>> Could someone help me a bit with something? My coding skills are not up 
>> to even this simple task sadly.
>>
>> The WebDAV saver for TiddlyWiki saves using the HTTP PUT method. 
>> Unfortunately the Apache and IIS implementations of WebDAV do not respond 
>> with the updated ETag header. However, according to the documentation, ....
>>
>
> Hi, Can you add some links to your docs? Especially the ETag handling 
> stuff, that you refer to?
>  
> -m
>

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