What is eikieditor and where to get it and how to use it?

Ah sorry I guess you mean WikiEditor and that was a typo and not some gadget that I don't know? :)
Can you reproduce that also with other pages or only that article?

A lot of complains in ruwiki, starting from yesterday.

The link https://he.wikipedia.org/wiki/%25D7%2595%25D7%2599%25D7%25A7%25D7%2599%25D7%25A4%25D7%2593%25D7%2599%25D7%2594:%25D7%2593%25D7%259C%25D7%25A4%25D7%25A7_%25D7%2599%25D7%2599%25D7%25A2%25D7%2595%25D7%25A5#%D7%9C%D7%90_%D7%9E%D7%A6%D7%9C%D7%99%D7%97_%D7%9C%D7%A7%D7%A9%D7%A8_%D7%9C%D7%95%D7%99%D7%A7%D7%99%D7%A6%D7%A8%D7%A4%D7%AA%D7%99%D7%AA already says without any editing:

כותרת הדף המבוקש מכילה תווים בלתי־תקינים: "%D7". (The requested page title contains invalid characters: "% D7".)

Where does that article link come from?

this happens with any page save/publish, including null edit.
and yes, "eikieditor" is typo, i meant wikieditor. i specified it explicitly b/c we have "visual editor", and "wikieditor 2017".
TBH, i did not try with those - maybe same issue there too. will report if i have more info.

are "reproduction instructions" unclear?
did anyone reproduce successfully?

peace

1. I use Chromium 71.
2. I go to https://he.wikipedia.org/w/index.php?title=834&action=edit&debug=true to get the 2010 WikiEditor.
3. I click on the שמירה ופרסום button for a null edit.
4. I get do not get a "bad title" error. Cannot reproduce.

Any errors in the browser's developer tools? See https://www.mediawiki.org/wiki/Help:Locating_broken_scripts

UPDATE

• further experiments point to section edit (updated repro instructions). i did not see this happen on full page edit.
• with (beta preference) code editor 2017 ("New wikitext mode"), i did not see the issue
• seems to be reliably reproducible with section edit, wikieditor, when beta option turned off.

peace

1. I use Chromium 71
2. No beta features enabled on https://he.wikipedia.org/wiki/מיוחד:העדפות#mw-prefsection-betafeatures
3. I go to https://he.wikipedia.org/w/index.php?title=834&action=edit&section=2&debug=true to get the 2010 WikiEditor.
4. I click on the שמירה ופרסום button for a null edit.
5. I still do not get a "bad title" error...

See my question in the previous comment about developer tools' console output.

indeed, it does not happen on the page you linked (i thought it has something to do with debug=true, but no, it does not happen even without).
try
https://he.wikipedia.org/w/index.php?title=%D7%9E%D7%A0%D7%90%D7%A0%D7%93%D7%A8%D7%95%D7%A1_%D7%A8%D7%98%D7%95%D7%A8&action=edit&section=2

this happened on every single page i opened with "random" so far, this is why i wrote "reliable repro". maybe the fact that the page you tried with contains no hebrew characters is a clue....

i updated the "repro instructions" accordingly

as to debug console: the message i see on the "bad title" page is:

Failed to load resource: the server responded with a status of 400 ()

peace

And I still cannot reproduce with https://he.wikipedia.org/w/index.php?title=%D7%9E%D7%A0%D7%90%D7%A0%D7%93%D7%A8%D7%95%D7%A1_%D7%A8%D7%98%D7%95%D7%A8&action=edit&section=2 :(

Failed to load resource: the server responded with a status of 400 ()

Which exact URL is that message triggered by?

Also wondering if there is any pattern. For example that URL seems to have brackets in the title?

In T218310#5024342, @IKhitron wrote:

A lot of complains in ruwiki, starting from yesterday.

@IKhitron: Any links to discussions? Any info which browsers and browser versions people use?

Cc Amir.

In T218310#5024527, @Aklapper wrote:

@IKhitron: Any links to discussions? Any info which browsers and browser versions people use?

Sure. See here for example. Looks like Chrome only. And they say that there is no problem in 49.0.2623.112.

@Aklapper :
the url in devtools is:

https://he.wikipedia.org/wiki/%25D7%259E%25D7%2599%25D7%259B%25D7%2590%25D7%2599%25D7%259C_%25D7%25A1%25D7%259C%25D7%2598%25D7%2599%25D7%25A7%25D7%2595%25D7%2591-%25D7%25A9%25D7%25A6%2527%25D7%2593%25D7%25A8%25D7%2599%25D7%259F#%D7%91%D7%99%D7%95%D7%92%D7%A8%D7%A4%D7%99%D7%94

as to "i still can't reproduce", forgive my french, but this is plain silly.
you did not follow the reproduction instructions, did you?
you said "I use Chromium 71."
reproduction instructions says:
"install google chrome Version 73.0.3683.75 (Official Build) (64-bit) (windows 7)"
nobody claimed that this happens with "Chromium" (whatever this is), or even chrome version 71.

this is something that started recently, and as far as we know, is browser/version dependent (e.g., does not happens with firefox, or chrome 72 on mac), so please install latest chrome if you want to reproduce.

peace.

In T218310#5024342, @IKhitron wrote:

A lot of complains in ruwiki, starting from yesterday.

"starting from yesterday" (so wednesday-ish) doesn't line up with it being related to the MW train. ruwiki is a part of "group2" which means it gets the update on Thursdays, which happened for this new version at 13:10 UTC today: https://tools.wmflabs.org/sal/log/AWl8UuWLA1BDhGjCSszy

Of course, it could have only been noticed yesterday even though it happened last Thursday? Maybe?

There is one complain from March 10.

so it's not necessarily related to mw update - more likely chrome change.

@IKhitron - can you ask the person that reported on the 10th if they are on "beta channel" for chrome? the main version was updated on march 13, the beta on march 8.

peace

I do not think it's Chrome. A couple of people said thay did not update the browser a lot of time. Do you still want me to ask?

@IKhitron - if it's not chrome, then can you ask them for browser+version? you sure it's the same report?

peace

You did not understand me. It was Chrome in that report, but because of updating lack, I do not think that browser is the problem.

T218393 might be the reason for this? If so T218310 should be merged into T218393.

Aklapper, I'm sure that those two are the same problem.

@Aklapper - while T218393 is of higher quality and contains enough information to fix the problem, i still take some (modest) amount of pride at being first.... ;)

(before submitting the ticket i did try to search if the problem was already reported. not sure if my search would have found the other ticket anyway, but the fact is, it didn't even exist yet....)

yes, those two look practically the same issue - only diff is that in hewiki we see %d7, and ruwiki reports %d0 - this is exactly as expected, as cyrilic chars UTF8 code begins with D0 and hebrew with D7.

as to merging tickets - it's your field, do what you think is right.

peace.

:D That all makes sense. Thanks again for reporting this, definitely been helpful to get the bits and pieces together!