Signature shows up on form, but image emailed isn't saved or mapped correctly

Hi

I've implemented the Signature plugin and though it appears to be working correctly on the web page, the image sent in the email is either not being saved, or mapped correctly.

Link to live form: http://www.dc-acupuncture.com/medical-insurance-form

Link to image sent in email:
http://www.dc-acupuncture.com/?page=gf_signature&signature=505a6f72967804.19909891

I've already tried disabling all other plugins and this did not resolve the issue.

I'm using the WP Minify Options plugin, but I've added the ss.js file to the "JavaScript files to exclude from minify" and "URIs on which WP-Minify parsing will be disabled" options. (FYI the signature box doesn't show up at all if this file isn't added to these tow WP Minify Opitons)

I'm running Wordpress Version 3.4.2

Thanks for the help!
Jules

Hi Chris

RE: Have you already tested for theme and plugin conflicts
I did, but since it seems like it has to be one of these causing the conflict I re-tested. And go figure it's a conflict with WP Minify.

I should be able to exclude files from minification and uri's on which WP-Minify parsing will be disabled. Just like I did with the
http://www.dc-acupuncture.com/wp-content/plugins/gravityformssignature/super_signature/ss.js file. (adding that file to the WP Minify settings enabled the signature field to work)

I'm hoping you can help me to figure out which files I should test out. Since it's a signature plugin issue I thought that any files that might need to be excluded would be in the gravityformssignature plugin folder. But the ss.js was the only javascript file I found. The gravityforms plugin folder has lots of js files. Do you have any suggestions?

Thanks for the continued assistance!
Jules

Hi Chris

I did as you suggested, but it still didn't work.
I am getting one js error: SuperSignature is not defined

The only js file that contains "SuperSignature" is
/wp-content/plugins/gravityformssignature/super_signature/ss.js
And I have already excluded that from the WP-Minify, and verified that the file is being brought in on it's own
src='http://www.dc-acupuncture.com/wp-content/plugins/gravityformssignature/super_signature/ss.js?ver=1.2

gravityformssignature/signature.php also references "SuperSignature" but whether this file is influenced by WP Minify is above my head.

Because WP Minify is a widely used plugin I'm hoping that this is incentive for you to help me resolve this mystery.

Thanks!
Jules

RE: The best advice I can give is to not use WP Minify, or be sure to exclude all scripts from being minified.

A) Do you know of a Minification plugin that doesn't conflict with Gravity Forms?

B) I have excluded all js files from the gravityforms/js folder and the gravityformssignature/super_signature/ss.js file. Are there any others I should be excluding?

Is there a link or document you can show me that I can compare the source code from http://www.dc-acupuncture.com/medical-insurance-form to? As far as I can tell all the gravity form plugin scripts are coming in separately below the jquery.min.js?ver=1.7.2 file. (FYI Duplicate jquery files are NOT coming in. The GF jquery version 1.3.2 is not being loaded)
The only other script that comes in is from the gravityformssignature/signature.php file.

RE: I would probably take a look at all scripts used by Gravity Forms, including jQuery and jQuery UI, and exclude those as well, because other scripts rely on those two.

I do not see the /gravityforms/js/jquery-ui/ui.core.js file in the source code, but it is included in the WP Minify settings. Note that the two files below are being loaded and that the date functionality does work.
/gravityforms/js/datepicker.js
/gravityforms/js/jquery-ui/ui.datepicker.js

A) Problem is still present when using WP-Minify with the following Debugging setting "Combine files, but do not minify" and un-selecting the "Enable JavaScript Minification" from the General Config setting.

B) jQuery is brought in using a smart jquery inclusion call in my function.php file. It is not being minimized by WP Miniy. It comes in one one time via the url below whether WP-Minify is activated or not.
http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js?ver=1.7.2

RE: If Gravity Forms works when you do not use WP Minify, then the issue is going to be with which scripts are minimized by the plugin. Can you exclude all scripts from minification?

Refer to A) above.
I'm starting to think that the assumption this issue has to do with script minification is wrong.
I compared the source code from instances of WP-Minify activated and deactivated using the settings from "A)"
Using http://www.quickdiff.com/ I could not find any variation in the scripts being loaded, but when WP Minify is activated the signature images do not come through.

If minification is not the problem, where might it be?

Just to be clear, the images come through fine if WP Minify is deactivated.
Is your diagnosis still the same knowing this?

Could this be a permissions issue?

To me it seems like your software is doing as directed, but WP Minify is interrupting/corrupting the location where the image is stored. If I new where to look on the server I could check to see if this folder has the correct file permissions enabled.

I keep thinking it has to do with the gravityformssignature/signature.php file. Unfortunately I'm not fluent in PHP or javascript so I can get the gist of thing, but not a full understanding.

What do you think?

Or you can see the image using a direct link on dc-acupuncture.com

http://www.dc-acupuncture.com/wp-content/uploads/gravity_forms/signatures/505a4db576f1e1.15941046.png

Hi Chris

RE: I think you need to talk to your host and find out why the file is not being served correctly as a PNG.

This is going over my head a bit.

I'm confused about the file mapping. The file link that comes in the email uses a "?page=" call, it doesn't map directly to the image file.

http://www.dc-acupuncture.com/?page=gf_signature&signature=505ce775727075.18683655
vs
http://www.dc-acupuncture.com/wp-content/uploads/gravity_forms/signatures/505a4db576f1e1.15941046.png

I've verified that the png files are in the folder and not corrupted. If that's true then the link to the image in the email is not correct (or not working?) I don't understand how it's not being "served" correctly.

Because I don't have a clear understanding of this it's hard for me to formulate and pose an intelligent question to my hosting provider. Can you explain it to me?

Really appreciate your patience.

RE: Based on your information, the images are not corrupt: when saved with a file extension, they are served up just fine in your browser.

? "the images are not corrupt when saved with a file extension"

They are all saved with a file extension by your software.
They are mapped to without a file extension using your URL syntax/mapping
?page=gf_signature&signature=505ce775727075.18683655

Using "traditional" URL mapping the same image will present
/wp-content/uploads/gravity_forms/signatures/505ce775727075.18683655.png

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RE: A web server should be able to serve image files fine without an extension. However, it does not appear your server is doing that (same file, one with a png extension, one without, the one with the extension is served fine, the one without the extension is not.)

Since everything is fine if the WP-Minify addon is disabled then it is not an issue with the server.

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RE: Because this is working everywhere else I've tried it, I have to conclude it's something about your server or your WordPress installation. My experience diverged from yours at some point: I keep getting an error about the png file being corrupt. You are not.

Since everything is fine if the WP-Minify addon is disabled then it is not an issue with the server.
I am not experiencing anything different from you. If I use the ?page=gf_signature&signature= URL then I get the same ERROR in Firefox.

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RE: If you did not have that experience, I would suggest that there is still something on your server which is corrupting the PNG when it is being written

The PNG is only being "written" once, not every time it's linked to. Since I have downloaded the images and done a visual confirmation that they are fine this assumption is not valid. Go to the link below. Can you see the image? I can.
http://www.dc-acupuncture.com/wp-content/uploads/gravity_forms/signatures/505ce775727075.18683655.png

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RE: But, you are able to load the images fine, at least in browsers other than Firefox, when you add a png extension.

This is NOT a browser issue. Its the URL mapping
using the link below you get an error message
http://www.dc-acupuncture.com?page=gf_signature&signature=505ce775727075.18683655

Using "traditional" URL mapping the same image will present
http://www.dc-acupuncture.com/wp-content/uploads/gravity_forms/signatures/505ce775727075.18683655.png

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RE: However, the fact that image is served with a "Content-Type: image/png" when called without an extension still leads me to believe the images are corrupt, as reported by Firefox, and image editors I have tried.

The image isn't the problem, the problem is related to how it's being requested.

Thank you for sticking with me
Jules

Hi Chris

I did some more testing and this is what I found:

FIRST I updated to the new version GFVersion 1.6.8.1 and tested. Everything appeared the same.

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RE: Something with WP Minify is causing those files to be written without a PNG extension on your server?

SECOND I Deactivated WP-Minify and submitted form to see if image files were being saved to the server folder wp-content/uploads/gravity_forms/signatures/ without the PNG extension.

I confirmed that the image files are saved with the PNG extension regardless of whether or not WP-Mnify is activated or deactivated.

The image links map to the images----they are not "written" each time they are requested. I can't tell if your wording of this is a miss-communication or if you literally meant this.

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I checked the images in the admin email and they are visible when the WP-Minify plugin is deactivated. AND MORE IMPORTANTLY I finally noticed that images from forms that were submitted when the WP-Minify plugin was active present correctly when the plugin is deactivated.

I activated WP-Minify again, tested the ?page= image links, and verified that the images were NOT visible on admin emails (or in a browser window) from forms submitted with the plugin active or deactivated.

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CONCLUSION
Somehow WP-Minify prevents the file mapping with ?page= from presenting, and in FF it throws the image error.

The problem is not with the image itself, it's with how it's being requested. There is some conflict with WP-Minify that interferes with this mapping.

Do you agree?

Hi guys

Will you be posting here when this conflict is resolved? Or is there some other way to get notification? Can I subscribe to some Bug Report or something?

thanks for the info
Jules

Thanks Chris!