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While trying to edit a tag wiki excerpt, I encountered the page not found issue.

Here are the steps that I performed:

  1. Clicked on Tags
  2. Clicked on the name tab
  3. Clicked edit link under the tag . Refer screenshot #1.
  4. Encountered the Page not found error message. Refer screenshot #2.
  5. I thought that error must have to do with the period (dot) in the tag name. So, I tried to edit the tag and I didn't encounter any error message. Refer screenshot #3.
  6. When I clicked the tag , the browser URI looked as shown in screenshot #4. The id value is being passed as -1.
  7. When I clicked the tag , the browser URI looked as shown in screenshot #5.

It seems that the error happens to tags that don't have any questions. , are some of the tags that have the same issue. The error happens only while clicking the edit link on the page shown in screenshot #1. Even though tags page doesn't show any count against these tags, clicking on the tags leads to a page with full of questions but on closer inspection they seem to lead to a slightly altered version of the tag.

leads to tag ajax without a period (dot)

leads to tag avi without a period (dot)

leads to tag batch-file


#1: Steps to click tag wiki excerpt link


#2: Page not found error while editing tag .ajax

Page not found

#3: No error while editing tag .ajax

No error

#4: Edit uri for tag .ajax

tag .ajax

#5: Edit uri for tag .app

tag .app

share|improve this question
I don't believe the problem is the links; the problem is that the tags showing up on that page are invalid, which are then generating the invalid links. If you go to you get redirected to which is correct. Note that there is a tag wiki for [ajax], but it doesn't show up under [.ajax]. – Jon Seigel Aug 3 '11 at 2:10
@Jon Seigel: Yes, as you said that the tags may be invalid. In that case, I believe those invalid tags shouldn't be displayed on that page. I have also pointed that out in my question that the tags with dot actually lead to tag without dot. – user162697 Aug 3 '11 at 2:14
I really like how your bug reports include repro screenshots. Whatever development team you work on must really love-hate you. – Cody Gray Aug 3 '11 at 10:00
@Cody What, no complaint that the arrows look suspiciously straight? Siva: the common factor is that those tags are synonyms; the edit link is wrong for synonyms (you can reproduce with e.g. shellscript which is a synonym of shell). – Gilles Aug 3 '11 at 13:40
@Siva The comment to Cody was a semi-private joke, a reference to his comments that my circles aren't hand-drawn. I don't understand your comment about suggesting synonyms of ssis; what I'm saying is that the bug isn't related to the initial . but to the fact that the tags are synonyms. – Gilles Aug 3 '11 at 14:47
up vote 0 down vote accepted

I just fixed this particular bug.

I now remove the edit link from tag synonyms. This issue only happened when the /tags page shows a synonym and you try to edit it.

I think the way we handle tag synonyms in the /tags page needs some extra TLC, we should make it crystal clear you are dealing with a synonym, that way it teaches people what the right tag is. Also it should be consistent with the new tagger.

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