Select Files button no reaction

[wpcachepress]

I’ve done some research:

1. Windows 10, Chrome 57.0.2987.110 (64-bit);
2. in my opinion it’s not related to server’s setup: on other browsers – it works;

3. previous instances of WP 4.7.3 – Select Files works;
4. new instances of WP 4.7.3 – Select Files no reaction;

5. it’s partialy Plupload/Moxie issue (​http://www.plupload.com/punbb/viewtopic.php?id=14914) – it’s used on that Select Files button by WP core, to generate hidden file input with accept argument which holds accepted mime/file types;

6. workaround # 1:

6.1. open (using chrome, win10) wp-admin > media > library > click “add new” (while in grid, not list) – “Drop files anywhere to upload” block appears with Select Files button;
6.2. open chrome developer console, find that hidden file input, it’s right before </body> tag, named with eg. id=”html5_1bblpaq4r1ee0e6ich21tge1mus5″ and it has big accept argument with file types;
6.3. copy “accept” attribute big value to your favourite text editor, find “application/zip”, change it to “application/x-zip”, then copy-replace new big list of mimes/file-types to that “accept” attribute (don’t refersh page);
6.4. click on Select Files – it should work;

7. workaround # 2:

7.1. open chrome settings, show advanced settings at the bottom, under Privacy uncheck “Protect you and your device from dangerous websites”;
7.2. refresh media library page and go to Select Files (like in 6.1. explanation) – the button should work.

8. I’ve tried application/x-zip-compressed – bug not resolved – button didn’t work.
9. I think it’s more chrome bug, related to recently strenghtened malware/virus protection.
10. wp core team should make an exception for this situation to use application/x-zip instead of application/zip with Plupload/Moxie. or just to work with chrome team to sort out this.

[wpcachepress]

initial other users reports about this bug:
​https://wordpress.org/support/topic/upload-new-media-select-files-button-not-working/

[wpcachepress]

more info on research:

• bug appears on "non-standard" new WP instances domains, eg. "mydemodomain.press";
• I've created new WP instance on "standard" domain, "mydemodomain.com" - bug doesn't exist;

it's deeply related to Plupload and/or Chrome's recent security changes

[wpcachepress]

also - made tests with https on and off - no difference

[swissspidy]

Does updating Plupload make any difference? See #40158 for a patch.

[wpcachepress]

Yes it works!

Replying to swissspidy:

Does updating Plupload make any difference? See #40158 for a patch.

[swissspidy]

Duplicate of #40158.

@wpcachepress Awesome. Closing this one as a duplicate now because of the working patch on the other ticket.

[techstarter]

I have the same issue as described in the ticket that was referred to this one (as a duplicate)

To clarify the exact issue :

• I have a Wordpress Multisite install recently updated to 4.7.3

• The base site is a 'world' TLD.

• I also have domain mapping.

• Since upgrading to 4.7.3

• wordpress using the new TLD (xxxx.world/wp-admin) - the 'select files' button does nothing.

• a 'normal' TLD mapped to the same install (xxxx.com/wp-admin) - the 'select files' button works normally.

I have tried the solution advised from the duplicate ticket :

https://core.trac.wordpress.org/ticket/40158

the DIFF file provided (updating plupload)

It did not resolve... can anyone offer any more insight how i can resolve or troubleshoot?

I am not the only admin, any workarounds that involve editing browser settings are not tenable solutions.

[Kengun]

Funny thing is that this problems seems to start with new installations. I have lots of WP sites running without this problem (using Chrome browser on all of them). Today when I installed a fresh new site I got the problem. A Google search got me in here :)

This solution worked for me:

7. workaround:

7.1. open chrome settings, show advanced settings at the bottom, under Privacy uncheck “Protect you and your device from dangerous websites”;
7.2. refresh media library page and go to Select Files (like in 6.1. explanation) – the button should work.

• but I dont like turning this setting off. And it's a bit strange that it work on all of my other sites.

[wpcachepress]

@Kengun ​https://wordpress.org/support/topic/upload-new-media-select-files-button-not-working/page/2/#post-8934741 - test plugin fix - ​https://goo.gl/UqVsjU

[techstarter]

okay my apologies -

PLUGIN solution - does work. and is very simple. skip everything else and do this...

1. DOWNLOAD THE PLUGIN : ​https://goo.gl/UqVsjU

2. UPLOAD IT TO YOUR PLUGINS DIRECTORY

3. ACTIVATE the plugin...

4. Clear your browser cache / cookies

(chrome > settings > advanced > content settings > all cookies and site data)

5. Check the 'select files' button ... and the problem should be solved!

Apologies for any confusion caused however this was marked as a duplicate issue for another thread, which proposed a different fix (a patch) which did not work.

[wpcachepress]

@techstarter that plugin "uses the same patch" from that other ticket - it just provides original/unmodified version of updated script version. so it's same code, maybe you've done something wrong when applying patch.

[sneader]

Just a quick comment that the plupload-fix.zip plugin immediately solved my inability to use "Select Files" in Media. I did not need to clear any cache or cookies. Uploaded, activated and saw immediate relief for this frustrating issue. Looking forward to the permanent fix in 4.7.5.

• Scott

[Otto42]

Duplicate of #40158.

Seeing as the patch does actually work, both in patch and plugin form, reclosing this as a duplicate of the other ticket.

[SergeyBiryukov]

#40641 was marked as a duplicate.