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| 1 |  | 
| 2 <!-- |  | 
| 3 This file is autogenerated based on |  | 
| 4 https://github.com/PolymerElements/ContributionGuide/blob/master/CONTRIBUTING.md |  | 
| 5 |  | 
| 6 If you edit that file, it will get updated everywhere else. |  | 
| 7 If you edit this file, your changes will get overridden :) |  | 
| 8 |  | 
| 9 You can however override the jsbin link with one that's customized to this |  | 
| 10 specific element: |  | 
| 11 |  | 
| 12 jsbin=https://jsbin.com/cagaye/edit?html,output |  | 
| 13 --> |  | 
| 14 # Polymer Elements |  | 
| 15 ## Guide for Contributors |  | 
| 16 |  | 
| 17 Polymer Elements are built in the open, and the Polymer authors eagerly encourag
    e any and all forms of community contribution. When contributing, please follow 
    these guidelines: |  | 
| 18 |  | 
| 19 ### Filing Issues |  | 
| 20 |  | 
| 21 **If you are filing an issue to request a feature**, please provide a clear desc
    ription of the feature. It can be helpful to describe answers to the following q
    uestions: |  | 
| 22 |  | 
| 23  1. **Who will use the feature?** _“As someone filling out a form…”_ |  | 
| 24  2. **When will they use the feature?** _“When I enter an invalid value…”_ |  | 
| 25  3. **What is the user’s goal?** _“I want to be visually notified that the value
     needs to be corrected…”_ |  | 
| 26 |  | 
| 27 **If you are filing an issue to report a bug**, please provide: |  | 
| 28 |  | 
| 29  1. **A clear description of the bug and related expectations.** Consider using 
    the following example template for reporting a bug: |  | 
| 30 |  | 
| 31  ```markdown |  | 
| 32  The `paper-foo` element causes the page to turn pink when clicked. |  | 
| 33 |  | 
| 34  ## Expected outcome |  | 
| 35 |  | 
| 36  The page stays the same color. |  | 
| 37 |  | 
| 38  ## Actual outcome |  | 
| 39 |  | 
| 40  The page turns pink. |  | 
| 41 |  | 
| 42  ## Steps to reproduce |  | 
| 43 |  | 
| 44  1. Put a `paper-foo` element in the page. |  | 
| 45  2. Open the page in a web browser. |  | 
| 46  3. Click the `paper-foo` element. |  | 
| 47  ``` |  | 
| 48 |  | 
| 49  2. **A reduced test case that demonstrates the problem.** If possible, please i
    nclude the test case as a JSBin. Start with this template to easily import and u
    se relevant Polymer Elements: [https://jsbin.com/cagaye/edit?html,output](https:
    //jsbin.com/cagaye/edit?html,output). |  | 
| 50 |  | 
| 51  3. **A list of browsers where the problem occurs.** This can be skipped if the 
    problem is the same across all browsers. |  | 
| 52 |  | 
| 53 ### Submitting Pull Requests |  | 
| 54 |  | 
| 55 **Before creating a pull request**, please ensure that an issue exists for the c
    orresponding change in the pull request that you intend to make. **If an issue d
    oes not exist, please create one per the guidelines above**. The goal is to disc
    uss the design and necessity of the proposed change with Polymer authors and com
    munity before diving into a pull request. |  | 
| 56 |  | 
| 57 When submitting pull requests, please provide: |  | 
| 58 |  | 
| 59  1. **A reference to the corresponding issue** or issues that will be closed by 
    the pull request. Please refer to these issues in the pull request description u
    sing the following syntax: |  | 
| 60 |  | 
| 61  ```markdown |  | 
| 62  (For a single issue) |  | 
| 63  Fixes #20 |  | 
| 64 |  | 
| 65  (For multiple issues) |  | 
| 66  Fixes #32, fixes #40 |  | 
| 67  ``` |  | 
| 68 |  | 
| 69  2. **A succinct description of the design** used to fix any related issues. For
     example: |  | 
| 70 |  | 
| 71  ```markdown |  | 
| 72  This fixes #20 by removing styles that leaked which would cause the page to tur
    n pink whenever `paper-foo` is clicked. |  | 
| 73  ``` |  | 
| 74 |  | 
| 75  3. **At least one test for each bug fixed or feature added** as part of the pul
    l request. Pull requests that fix bugs or add features without accompanying test
    s will not be considered. |  | 
| 76 |  | 
| 77 If a proposed change contains multiple commits, please [squash commits](https://
    www.google.com/url?q=http://blog.steveklabnik.com/posts/2012-11-08-how-to-squash
    -commits-in-a-github-pull-request) to as few as is necessary to succinctly expre
    ss the change. A Polymer author can help you squash commits, so don’t be afraid 
    to ask us if you need help with that! |  | 
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