Deeper diving into the issue needed step-by-step investigation:
1) First I did a copy of node.js wiki into a temporary folder:
xcopy /s/i/q %TW_DIR%\*.* %TMP_DIR%
2) Then I did copying of images into separate folder near the single-file
wiki:
tiddlywiki %TMP_DIR% --savetiddlers %IMG_FILTER% %HTML_IMAGES_DIR%
3) After that in the temporary copy of the wiki two fields *_canonical_uri*
and *text* were impacted
tiddlywiki %TMP_DIR% --setfield %IMG_FILTER% _canonical_uri
"$:/core/templates/canonical-uri-external-image" text/plain
tiddlywiki %TMP_DIR% --setfield %IMG_FILTER% text "" text/plain
4) The final step was in generation of a single-file HTML wiki from the
temporary node.js wiki:
tiddlywiki %TMP_DIR% --rendertiddler $:/plugins/tiddlywiki/tiddlyweb/
save/offline %HTML_INDEX_FILE% text/plain
After the 3rd step I noticed the content of one of the impacted images (in
our case it is *$:/boa/img/protw-logo.svg*)
$__boa_img_protw-logo.svg.meta
_canonical_uri: ./images/%2524%253A%252Fboa%252Fimg%252Fprotw-logo.svg
title: $:/boa/img/protw-logo.svg
type: image/svg+xml
$__boa_img_protw-logo.svg
undefined
The very this last value *undefined* then has transferred into the HTML
single-file wiki as *<pre>undefined</pre>*.
Another command *render* shows the similar result.
It looks like some tiny changes happened in the command
*rendertiddler/render* that from recent times generates unwanted content
*<pre>undefined</pre>*. I purposely checked my old stuff generated much
earlier - *_canonical_uri* tiddlers contain just *<pre></pre>*.
So, my conclusion:
1. the issue is out of the scope of my competence,
2. help of the TW developers' team is rather needed.
I'm grateful in advance.
Olegh
вівторок, 7 січня 2020 р. 18:02:38 UTC+2 користувач oleghbond написав:
>
> Meanwhile continuing exploring the case I've just found a probable direct
> cause of the mishap. The HTML-code of the image tiddler with _canonical_uri
> field has the following look:
>
> <div _canonical_uri=
> "./images/%2524%253A%252Fboa%252Fimg%252Fprotw-logo.svg" bag="default"
> created="20200107111510059" modified="20200107111519486" revision="0"
> title="$:/boa/img/protw-logo.svg" type="image/svg+xml">
> <pre>undefined</pre>
> </div>
>
> The fragment *undefined* has immediately drawn my attention. Having
> removed it the order of things has been restored!
>
> Although I've passed to other issue: what is a cause of this strange word
> and how to remove it in most proper way?
>
>
> вівторок, 7 січня 2020 р. 16:56:19 UTC+2 користувач oleghbond написав:
>>
>> I've encountered a serious problem where and when I never expected it.
>>
>> Briefly: *_canonical_uri* images stopped working in a single HTML-file
>> when I build a wiki from Node.js using TW CLI command, type of:
>>
>> tiddlywiki "D:\boa_protw\_tmp\_ibbXVJ" --rendertiddler $:/plugins/
>> tiddlywiki/tiddlyweb/save/offline
>> "D:\boa_protw\wiki_bag\prosteer\docs\index.html" text/plain
>>
>> or
>>
>> tiddlywiki "D:\boa_protw\_tmp\_ibbXVJ" --output
>> "D:\boa_protw\wiki_bag\prosteer\docs" --render "[all[]]" "index_2.html"
>> "text/plain" $:/plugins/tiddlywiki/tiddlyweb/save/offline
>>
>> Occasionally I noticed the problem a couple of days ago. Before this I
>> generated wikis a lot of times in exactly the same way without any problem.
>>
>> I checked the image itself. Everything OK with it:
>>
>> [image: image1.png]
>>
>> [image: image2.png]
>>
>> However, when I try to reveal it via a standard reference a sort of
>> *[img[img_name.ext]]* I see the following result as of a corrupted link.
>>
>> [image: image3.png]
>> Do you have anybody an idea what has happened with my environment? At the
>> moment I've no idea!
>>
>
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