# Sample data wiki download URL changed

**URL:** https://discourse.slicer.org/t/sample-data-wiki-download-url-changed/438
**Category:** Development
**Tags:** web-infrastructure
**Created:** [June 3, 2017, 12:12pm UTC](https://discourse.slicer.org/t/sample-data-wiki-download-url-changed/438 "2017-06-03T12:12:38Z")
**Posts on this page:** 8
**Page:** 1

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### Author: ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [June 3, 2017, 12:12pm UTC](https://discourse.slicer.org/t/sample-data-wiki-download-url-changed/438/1 "2017-06-03T12:12:38Z")

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Slicer fails to download sample data from the wiki that causes many errors (for example [http://trunk.cdash.org/viewTest.php?onlyfailed&buildid=1036019](http://trunk.cdash.org/viewTest.php?onlyfailed&buildid=1036019)).

URLs that used to work before yesterday:  
[http://www.slicer.org/slicerWiki/images/4/43/MR-head.nrrd](http://www.slicer.org/slicerWiki/images/4/43/MR-head.nrrd)  
[http://www.slicer.org/slicerWiki/images/3/31/CT-chest.nrrd](http://www.slicer.org/slicerWiki/images/3/31/CT-chest.nrrd)  
[http://www.slicer.org/slicerWiki/images/0/00/CTA-cardio.nrrd](http://www.slicer.org/slicerWiki/images/0/00/CTA-cardio.nrrd)  
[http://www.slicer.org/slicerWiki/images/0/01/DTI-Brain.nrrd](http://www.slicer.org/slicerWiki/images/0/01/DTI-Brain.nrrd)  
[http://www.slicer.org/slicerWiki/images/5/59/RegLib\_C01\_1.nrrd](http://www.slicer.org/slicerWiki/images/5/59/RegLib_C01_1.nrrd)  
[http://www.slicer.org/slicerWiki/images/e/e3/RegLib\_C01\_2.nrrd](http://www.slicer.org/slicerWiki/images/e/e3/RegLib_C01_2.nrrd)

It seems that the data sets are still available on the wiki, but with a slightly different URL:  
[https://www.slicer.org/w/images/4/43/MR-head.nrrd](https://www.slicer.org/w/images/4/43/MR-head.nrrd)  
[https://www.slicer.org/w/images/3/31/CT-chest.nrrd](https://www.slicer.org/w/images/3/31/CT-chest.nrrd)

@mhalle @jcfr  
Could the old URLs be made to work again?  
In the long term, should we move sample data to Midas or use a different URL?

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### Author: ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)
#### Post date: [June 3, 2017, 1:13pm UTC](https://discourse.slicer.org/t/sample-data-wiki-download-url-changed/438/2 "2017-06-03T13:13:53Z")

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adding @freephile

Let’s please try to make the old url work if at all possible.

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### Author: ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [June 3, 2017, 5:34pm UTC](https://discourse.slicer.org/t/sample-data-wiki-download-url-changed/438/3 "2017-06-03T17:34:08Z")

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Yes, making the old URL work again is very important, as there are tens of thousands of Slicer instances already installed that keep looking for the data at that location.

In new Slicer versions, should we download the data from Midas? A couple of sample data sets are already downloaded from there.

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### Author: ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [June 3, 2017, 6:14pm UTC](https://discourse.slicer.org/t/sample-data-wiki-download-url-changed/438/4 "2017-06-03T18:14:02Z")

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Many extension logos are also stored on the wiki, so lots of images are missing from the extension manager, too:

 ![](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/1X/4b44e3825ac6d34cb213b6f891c5221f4b0fd7ef.png)

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### Author: ![freephile](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/freephile/32/248_2.png) [@freephile](https://discourse.slicer.org/u/freephile)
#### Post date: [June 3, 2017, 8:09pm UTC](https://discourse.slicer.org/t/sample-data-wiki-download-url-changed/438/5 "2017-06-03T20:09:16Z")

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I’ll have this fixed shortly. I moved rewrite rules into the Apache configuration to make the server faster, but obviously one of them is wrong. I’ll be able to debug it and fix it up shortly.

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### Author: ![freephile](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/freephile/32/248_2.png) [@freephile](https://discourse.slicer.org/u/freephile)
#### Post date: [June 3, 2017, 9:34pm UTC](https://discourse.slicer.org/t/sample-data-wiki-download-url-changed/438/6 "2017-06-03T21:34:34Z")

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OK, this should be fixed now. A passthrough flag was the culprit.

In case of any additional problems, please provide the specific URL.

Thanks

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### Author: ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)
#### Post date: [June 3, 2017, 10:04pm UTC](https://discourse.slicer.org/t/sample-data-wiki-download-url-changed/438/7 "2017-06-03T22:04:51Z")

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Confirmed - thanks!

(extra characters…)

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### Author: ![jcfr](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jcfr/32/17825_2.png) [@jcfr](https://discourse.slicer.org/u/jcfr)
#### Post date: [June 4, 2017, 2:19am UTC](https://discourse.slicer.org/t/sample-data-wiki-download-url-changed/438/8 "2017-06-04T02:19:53Z")

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Thanks Greg 👍
