We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Update error message on check availability section in the request form
### Issue description

To keep language consistent, we should update the error message in the check availability section in the request form from:

This

> That domain isn't available. Try entering another one. Contact us if you need help coming up with a domain. 


To this

> That domain isn’t available. [Read more about choosing your .gov domain.](https://beta.get.gov/domains/choosing/) 


Note that the hyperlink in the new message should open in a new tab so as to not take the user our of the request flow

### Acceptance criteria

- [ ] error message is updated
- [ ] link opens in new tab

### Additional context

_No response_

### Links to other issues

_No response_

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `src/api/views.py`
Content:
```
1 """Internal API views"""
2 from django.apps import apps
3 from django.views.decorators.http import require_http_methods
4 from django.http import JsonResponse
5 
6 import requests
7 
8 from login_required import login_not_required
9 
10 from cachetools.func import ttl_cache
11 
12 
13 DOMAIN_FILE_URL = "https://raw.githubusercontent.com/cisagov/dotgov-data/main/current-full.csv"
14 
15 
16 DOMAIN_API_MESSAGES = {
17     "required": "Enter the .gov domain you want. Don’t include “www” or “.gov.”"
18     " For example, if you want www.city.gov, you would enter “city”"
19     " (without the quotes).",
20     "extra_dots": "Enter the .gov domain you want without any periods.",
21     "unavailable": "That domain isn’t available. Try entering another one."
22     " Contact us if you need help coming up with a domain.",
23     "invalid": "Enter a domain using only letters, numbers, or hyphens (though we don't recommend using hyphens).",
24     "success": "That domain is available!",
25     "error": "Error finding domain availability.",
26 }
27 
28 
29 # this file doesn't change that often, nor is it that big, so cache the result
30 # in memory for ten minutes
31 @ttl_cache(ttl=600)
32 def _domains():
33     """Return a list of the current .gov domains.
34 
35     Fetch a file from DOMAIN_FILE_URL, parse the CSV for the domain,
36     lowercase everything and return the list.
37     """
38     DraftDomain = apps.get_model("registrar.DraftDomain")
39     # 5 second timeout
40     file_contents = requests.get(DOMAIN_FILE_URL, timeout=5).text
41     domains = set()
42     # skip the first line
43     for line in file_contents.splitlines()[1:]:
44         # get the domain before the first comma
45         domain = line.split(",", 1)[0]
46         # sanity-check the string we got from the file here
47         if DraftDomain.string_could_be_domain(domain):
48             # lowercase everything when we put it in domains
49             domains.add(domain.lower())
50     return domains
51 
52 
53 def check_domain_available(domain):
54     """Return true if the given domain is available.
55 
56     The given domain is lowercased to match against the domains list. If the
57     given domain doesn't end with .gov, ".gov" is added when looking for
58     a match.
59     """
60     Domain = apps.get_model("registrar.Domain")
61     try:
62         if domain.endswith(".gov"):
63             return Domain.available(domain)
64         else:
65             # domain search string doesn't end with .gov, add it on here
66             return Domain.available(domain + ".gov")
67     except Exception:
68         return False
69 
70 
71 @require_http_methods(["GET"])
72 @login_not_required
73 def available(request, domain=""):
74     """Is a given domain available or not.
75 
76     Response is a JSON dictionary with the key "available" and value true or
77     false.
78     """
79     DraftDomain = apps.get_model("registrar.DraftDomain")
80     # validate that the given domain could be a domain name and fail early if
81     # not.
82     if not (DraftDomain.string_could_be_domain(domain) or DraftDomain.string_could_be_domain(domain + ".gov")):
83         return JsonResponse({"available": False, "message": DOMAIN_API_MESSAGES["invalid"]})
84     # a domain is available if it is NOT in the list of current domains
85     try:
86         if check_domain_available(domain):
87             return JsonResponse({"available": True, "message": DOMAIN_API_MESSAGES["success"]})
88         else:
89             return JsonResponse({"available": False, "message": DOMAIN_API_MESSAGES["unavailable"]})
90     except Exception:
91         return JsonResponse({"available": False, "message": DOMAIN_API_MESSAGES["error"]})
92
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/src/api/views.py b/src/api/views.py
--- a/src/api/views.py
+++ b/src/api/views.py
@@ -2,6 +2,9 @@
 from django.apps import apps
 from django.views.decorators.http import require_http_methods
 from django.http import JsonResponse
+from django.utils.safestring import mark_safe
+
+from registrar.templatetags.url_helpers import public_site_url
 
 import requests
 
@@ -18,8 +21,13 @@
     " For example, if you want www.city.gov, you would enter “city”"
     " (without the quotes).",
     "extra_dots": "Enter the .gov domain you want without any periods.",
-    "unavailable": "That domain isn’t available. Try entering another one."
-    " Contact us if you need help coming up with a domain.",
+    # message below is considered safe; no user input can be inserted into the message
+    # body; public_site_url() function reads from local app settings and therefore safe
+    "unavailable": mark_safe(  # nosec
+        "That domain isn’t available. "
+        "<a class='usa-link' href='{}' target='_blank'>"
+        "Read more about choosing your .gov domain.</a>".format(public_site_url("domains/choosing"))
+    ),
     "invalid": "Enter a domain using only letters, numbers, or hyphens (though we don't recommend using hyphens).",
     "success": "That domain is available!",
     "error": "Error finding domain availability.",

{"golden_diff": "diff --git a/src/api/views.py b/src/api/views.py\n--- a/src/api/views.py\n+++ b/src/api/views.py\n@@ -2,6 +2,9 @@\n from django.apps import apps\n from django.views.decorators.http import require_http_methods\n from django.http import JsonResponse\n+from django.utils.safestring import mark_safe\n+\n+from registrar.templatetags.url_helpers import public_site_url\n \n import requests\n \n@@ -18,8 +21,13 @@\n     \" For example, if you want www.city.gov, you would enter \u201ccity\u201d\"\n     \" (without the quotes).\",\n     \"extra_dots\": \"Enter the .gov domain you want without any periods.\",\n-    \"unavailable\": \"That domain isn\u2019t available. Try entering another one.\"\n-    \" Contact us if you need help coming up with a domain.\",\n+    # message below is considered safe; no user input can be inserted into the message\n+    # body; public_site_url() function reads from local app settings and therefore safe\n+    \"unavailable\": mark_safe(  # nosec\n+        \"That domain isn\u2019t available. \"\n+        \"<a class='usa-link' href='{}' target='_blank'>\"\n+        \"Read more about choosing your .gov domain.</a>\".format(public_site_url(\"domains/choosing\"))\n+    ),\n     \"invalid\": \"Enter a domain using only letters, numbers, or hyphens (though we don't recommend using hyphens).\",\n     \"success\": \"That domain is available!\",\n     \"error\": \"Error finding domain availability.\",\n", "issue": "Update error message on check availability section in the request form\n### Issue description\n\nTo keep language consistent, we should update the error message in the check availability section in the request form from:\r\n\r\nThis\r\n\r\n> That domain isn't available. Try entering another one. Contact us if you need help coming up with a domain. \r\n\r\n\r\nTo this\r\n\r\n> That domain isn\u2019t available. [Read more about choosing your .gov domain.](https://beta.get.gov/domains/choosing/) \r\n\r\n\r\nNote that the hyperlink in the new message should open in a new tab so as to not take the user our of the request flow\n\n### Acceptance criteria\n\n- [ ] error message is updated\r\n- [ ] link opens in new tab\n\n### Additional context\n\n_No response_\n\n### Links to other issues\n\n_No response_\n", "before_files": [{"content": "\"\"\"Internal API views\"\"\"\nfrom django.apps import apps\nfrom django.views.decorators.http import require_http_methods\nfrom django.http import JsonResponse\n\nimport requests\n\nfrom login_required import login_not_required\n\nfrom cachetools.func import ttl_cache\n\n\nDOMAIN_FILE_URL = \"https://raw.githubusercontent.com/cisagov/dotgov-data/main/current-full.csv\"\n\n\nDOMAIN_API_MESSAGES = {\n    \"required\": \"Enter the .gov domain you want. Don\u2019t include \u201cwww\u201d or \u201c.gov.\u201d\"\n    \" For example, if you want www.city.gov, you would enter \u201ccity\u201d\"\n    \" (without the quotes).\",\n    \"extra_dots\": \"Enter the .gov domain you want without any periods.\",\n    \"unavailable\": \"That domain isn\u2019t available. Try entering another one.\"\n    \" Contact us if you need help coming up with a domain.\",\n    \"invalid\": \"Enter a domain using only letters, numbers, or hyphens (though we don't recommend using hyphens).\",\n    \"success\": \"That domain is available!\",\n    \"error\": \"Error finding domain availability.\",\n}\n\n\n# this file doesn't change that often, nor is it that big, so cache the result\n# in memory for ten minutes\n@ttl_cache(ttl=600)\ndef _domains():\n    \"\"\"Return a list of the current .gov domains.\n\n    Fetch a file from DOMAIN_FILE_URL, parse the CSV for the domain,\n    lowercase everything and return the list.\n    \"\"\"\n    DraftDomain = apps.get_model(\"registrar.DraftDomain\")\n    # 5 second timeout\n    file_contents = requests.get(DOMAIN_FILE_URL, timeout=5).text\n    domains = set()\n    # skip the first line\n    for line in file_contents.splitlines()[1:]:\n        # get the domain before the first comma\n        domain = line.split(\",\", 1)[0]\n        # sanity-check the string we got from the file here\n        if DraftDomain.string_could_be_domain(domain):\n            # lowercase everything when we put it in domains\n            domains.add(domain.lower())\n    return domains\n\n\ndef check_domain_available(domain):\n    \"\"\"Return true if the given domain is available.\n\n    The given domain is lowercased to match against the domains list. If the\n    given domain doesn't end with .gov, \".gov\" is added when looking for\n    a match.\n    \"\"\"\n    Domain = apps.get_model(\"registrar.Domain\")\n    try:\n        if domain.endswith(\".gov\"):\n            return Domain.available(domain)\n        else:\n            # domain search string doesn't end with .gov, add it on here\n            return Domain.available(domain + \".gov\")\n    except Exception:\n        return False\n\n\n@require_http_methods([\"GET\"])\n@login_not_required\ndef available(request, domain=\"\"):\n    \"\"\"Is a given domain available or not.\n\n    Response is a JSON dictionary with the key \"available\" and value true or\n    false.\n    \"\"\"\n    DraftDomain = apps.get_model(\"registrar.DraftDomain\")\n    # validate that the given domain could be a domain name and fail early if\n    # not.\n    if not (DraftDomain.string_could_be_domain(domain) or DraftDomain.string_could_be_domain(domain + \".gov\")):\n        return JsonResponse({\"available\": False, \"message\": DOMAIN_API_MESSAGES[\"invalid\"]})\n    # a domain is available if it is NOT in the list of current domains\n    try:\n        if check_domain_available(domain):\n            return JsonResponse({\"available\": True, \"message\": DOMAIN_API_MESSAGES[\"success\"]})\n        else:\n            return JsonResponse({\"available\": False, \"message\": DOMAIN_API_MESSAGES[\"unavailable\"]})\n    except Exception:\n        return JsonResponse({\"available\": False, \"message\": DOMAIN_API_MESSAGES[\"error\"]})\n", "path": "src/api/views.py"}], "after_files": [{"content": "\"\"\"Internal API views\"\"\"\nfrom django.apps import apps\nfrom django.views.decorators.http import require_http_methods\nfrom django.http import JsonResponse\nfrom django.utils.safestring import mark_safe\n\nfrom registrar.templatetags.url_helpers import public_site_url\n\nimport requests\n\nfrom login_required import login_not_required\n\nfrom cachetools.func import ttl_cache\n\n\nDOMAIN_FILE_URL = \"https://raw.githubusercontent.com/cisagov/dotgov-data/main/current-full.csv\"\n\n\nDOMAIN_API_MESSAGES = {\n    \"required\": \"Enter the .gov domain you want. Don\u2019t include \u201cwww\u201d or \u201c.gov.\u201d\"\n    \" For example, if you want www.city.gov, you would enter \u201ccity\u201d\"\n    \" (without the quotes).\",\n    \"extra_dots\": \"Enter the .gov domain you want without any periods.\",\n    # message below is considered safe; no user input can be inserted into the message\n    # body; public_site_url() function reads from local app settings and therefore safe\n    \"unavailable\": mark_safe(  # nosec\n        \"That domain isn\u2019t available. \"\n        \"<a class='usa-link' href='{}' target='_blank'>\"\n        \"Read more about choosing your .gov domain.</a>\".format(public_site_url(\"domains/choosing\"))\n    ),\n    \"invalid\": \"Enter a domain using only letters, numbers, or hyphens (though we don't recommend using hyphens).\",\n    \"success\": \"That domain is available!\",\n    \"error\": \"Error finding domain availability.\",\n}\n\n\n# this file doesn't change that often, nor is it that big, so cache the result\n# in memory for ten minutes\n@ttl_cache(ttl=600)\ndef _domains():\n    \"\"\"Return a list of the current .gov domains.\n\n    Fetch a file from DOMAIN_FILE_URL, parse the CSV for the domain,\n    lowercase everything and return the list.\n    \"\"\"\n    DraftDomain = apps.get_model(\"registrar.DraftDomain\")\n    # 5 second timeout\n    file_contents = requests.get(DOMAIN_FILE_URL, timeout=5).text\n    domains = set()\n    # skip the first line\n    for line in file_contents.splitlines()[1:]:\n        # get the domain before the first comma\n        domain = line.split(\",\", 1)[0]\n        # sanity-check the string we got from the file here\n        if DraftDomain.string_could_be_domain(domain):\n            # lowercase everything when we put it in domains\n            domains.add(domain.lower())\n    return domains\n\n\ndef check_domain_available(domain):\n    \"\"\"Return true if the given domain is available.\n\n    The given domain is lowercased to match against the domains list. If the\n    given domain doesn't end with .gov, \".gov\" is added when looking for\n    a match.\n    \"\"\"\n    Domain = apps.get_model(\"registrar.Domain\")\n    try:\n        if domain.endswith(\".gov\"):\n            return Domain.available(domain)\n        else:\n            # domain search string doesn't end with .gov, add it on here\n            return Domain.available(domain + \".gov\")\n    except Exception:\n        return False\n\n\n@require_http_methods([\"GET\"])\n@login_not_required\ndef available(request, domain=\"\"):\n    \"\"\"Is a given domain available or not.\n\n    Response is a JSON dictionary with the key \"available\" and value true or\n    false.\n    \"\"\"\n    DraftDomain = apps.get_model(\"registrar.DraftDomain\")\n    # validate that the given domain could be a domain name and fail early if\n    # not.\n    if not (DraftDomain.string_could_be_domain(domain) or DraftDomain.string_could_be_domain(domain + \".gov\")):\n        return JsonResponse({\"available\": False, \"message\": DOMAIN_API_MESSAGES[\"invalid\"]})\n    # a domain is available if it is NOT in the list of current domains\n    try:\n        if check_domain_available(domain):\n            return JsonResponse({\"available\": True, \"message\": DOMAIN_API_MESSAGES[\"success\"]})\n        else:\n            return JsonResponse({\"available\": False, \"message\": DOMAIN_API_MESSAGES[\"unavailable\"]})\n    except Exception:\n        return JsonResponse({\"available\": False, \"message\": DOMAIN_API_MESSAGES[\"error\"]})\n", "path": "src/api/views.py"}]}