Hi Mark

> So,  should _canonical_uri work on external files? Or should we expect 
> browsers to block it?

This discussion is about _canonical_uri with text files; it works differently 
for images and HTML files (because it can use the <img> and <iframe> tags, 
instead of having to load the data directly with XMLHttpRequest).

_canonical_uri works with external text files when the TiddlyWiki is hosted on 
a HTTP URI, and the destination is CORS enabled. It doesn’t work when the 
TiddlyWiki is hosted on a file:// URI, which is what you are presumably doing.

The only thing that’s still confusing me is your report that visiting the 
following URL in Firefox on Windows 7 doesn’t work:

http://tiddlywiki.com/#Alice%20in%20Wonderland

Best wishes

Jeremy.


> It does not work on mine. I get 
> 
> 
> Loading external text from test.tid
> 
> If this message doesn't disappear you may be using a browser that doesn't 
> support external text in this configuration. See 
> http://tiddlywiki.com/#ExternalText <http://tiddlywiki.com/#ExternalText>
> 
> The test.tid is in the same directory as the TW file. Changing the extension 
> to .txt does not help.



> 
> This occurs in TW5 5.1.11 in  Firefox 43.0.1 under Windows 7.
> 
> Thanks,
> Mark
>  
> 
> On Friday, April 22, 2016 at 8:03:14 AM UTC-7, Jeremy Ruston wrote:
> Hi David
> 
>> I guess we need to create a 'specification' for the process.
> 
> This is a case where the problem isn’t the lack of a spec, but figuring out a 
> way to make the thing work; as noted in my previous reply, browsers restrict 
> file access quite heavily these days. When one is working with the single 
> file, standalone configuration of TiddlyWiki, the restrictions imposed by 
> browsers end up driving almost all of the major design decisions :(
> 
> Best wishes
> 
> Jeremy
> 
>> 
>> @Jeremy.
>> Do you have a system in place for designing the spec for new functionality ?
>> Is this a function that you think you may like to have ?
>> 
>> I would really love to help with this, but I'm fairly charged with my thesis 
>> at the moment (implementing a new data integration / visualisation / sharing 
>> / analysis system for a distributed teams of medical researchers trying to 
>> find a new HIV vaccine).
>> 
>> David
>> 
>> 
>> D
>> 
>> On Wed, Apr 20, 2016 at 11:55 PM, Hegart Dmishiv <hegart....@ <>gmail.com 
>> <http://gmail.com/>> wrote:
>> Bit of a bump here. I haven't gotten any further with this yet, and I'd 
>> really like to. Here's a screenshot of what I'd like to achieve. If anyone 
>> can help make it happen, I'd really appreciate it. Thanks.
>> 
>> 
>> 
>>  
>> <https://dl.dropboxusercontent.com/s/b0dgfdfertrarce/160421_importing_sampledata_from_a_button.png>
>> 
>> 
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