diff --git a/license-checker-config.json b/license-checker-config.json
index 3c6fb89..3cc172c 100644
--- a/license-checker-config.json
+++ b/license-checker-config.json
@@ -1,11 +1,11 @@
 {
-    "ignore": ".licenseignore",
-    "license": "LICENSE.HEADER",
-    "licenseFormats": {
-        "dotfile|licenseignore|gitignore|yml": {
-            "eachLine": {
-                "prepend": "# "
-            }
-        }
+  "ignore": ".licenseignore",
+  "license": "LICENSE.HEADER",
+  "licenseFormats": {
+    "dotfile|licenseignore|gitignore|yml": {
+      "eachLine": {
+        "prepend": "# "
+      }
     }
+  }
 }
diff --git a/src/claimVerification.js b/src/claimVerification.js
index f6e0cff..ec2ef38 100644
--- a/src/claimVerification.js
+++ b/src/claimVerification.js
@@ -18,15 +18,20 @@ const runOnJson = (res, proofData, checkPath, checkClaim, checkRelation) => {
     switch (checkRelation) {
       default:
       case 'contains':
-        re = new RegExp(checkClaim.replace('[', '\\[').replace(']', '\\]'), "gi")
+        re = new RegExp(
+          checkClaim.replace('[', '\\[').replace(']', '\\]'),
+          'gi'
+        )
         res.isVerified = re.test(proofData.replace(/\r?\n|\r/, ''))
         break
       case 'equals':
-        res.isVerified = proofData.replace(/\r?\n|\r/, '').toLowerCase() == checkClaim.toLowerCase()
+        res.isVerified =
+          proofData.replace(/\r?\n|\r/, '').toLowerCase() ==
+          checkClaim.toLowerCase()
         break
       case 'oneOf':
-        re = new RegExp(checkClaim, "gi")
-        res.isVerified = re.test(proofData.join("|"))
+        re = new RegExp(checkClaim, 'gi')
+        res.isVerified = re.test(proofData.join('|'))
         break
     }
     return res
@@ -34,27 +39,42 @@ const runOnJson = (res, proofData, checkPath, checkClaim, checkRelation) => {
 
   try {
     checkPath[0] in proofData
-  } catch(e) {
+  } catch (e) {
     res.errors.push('err_data_structure_incorrect')
     return res
   }
 
-  res = runOnJson(res, proofData[checkPath[0]], checkPath.slice(1), checkClaim, checkRelation)
+  res = runOnJson(
+    res,
+    proofData[checkPath[0]],
+    checkPath.slice(1),
+    checkClaim,
+    checkRelation
+  )
   return res
 }
 
 const run = (proofData, spData) => {
   let res = {
     isVerified: false,
-    errors: []
+    errors: [],
   }
 
   switch (spData.proof.format) {
     case 'json':
-      res = runOnJson(res, proofData, spData.claim.path, utils.generateClaim(spData.claim.fingerprint, spData.claim.format), spData.claim.relation)
+      res = runOnJson(
+        res,
+        proofData,
+        spData.claim.path,
+        utils.generateClaim(spData.claim.fingerprint, spData.claim.format),
+        spData.claim.relation
+      )
       break
     case 'text':
-      re = new RegExp(utils.generateClaim(spData.claim.fingerprint, spData.claim.format), "gi")
+      re = new RegExp(
+        utils.generateClaim(spData.claim.fingerprint, spData.claim.format),
+        'gi'
+      )
       res = re.test(proofData.replace(/\r?\n|\r/, ''))
       break
   }
diff --git a/src/index.js b/src/index.js
index ec6cd65..894a580 100644
--- a/src/index.js
+++ b/src/index.js
@@ -20,13 +20,17 @@ const claimVerification = require('./claimVerification')
 const utils = require('./utils')
 
 const verify = async (uri, fingerprint, opts) => {
-  if (!fingerprint) { fingerprint = null }
-  if (!opts) { opts = {} }
+  if (!fingerprint) {
+    fingerprint = null
+  }
+  if (!opts) {
+    opts = {}
+  }
 
   const defaultOpts = {
     returnMatchesOnly: false,
     proxyPolicy: 'adaptive',
-    doipProxyHostname: 'proxy.keyoxide.org'
+    doipProxyHostname: 'proxy.keyoxide.org',
   }
   opts = mergeOptions(defaultOpts, opts)
 
@@ -39,7 +43,13 @@ const verify = async (uri, fingerprint, opts) => {
   if ('returnMatchesOnly' in opts && opts.returnMatchesOnly) {
     return spMatches
   }
-  let claimVerificationDone = false, claimVerificationResult, sp, iSp = 0, res, proofData, spData
+  let claimVerificationDone = false,
+    claimVerificationResult,
+    sp,
+    iSp = 0,
+    res,
+    proofData,
+    spData
   while (!claimVerificationDone && iSp < spMatches.length) {
     spData = spMatches[iSp]
     spData.claim.fingerprint = fingerprint
@@ -48,7 +58,10 @@ const verify = async (uri, fingerprint, opts) => {
 
     if (spData.customRequestHandler instanceof Function) {
       proofData = await spData.customRequestHandler(spData, opts)
-    } else if (!spData.proof.useProxy || 'proxyPolicy' in opts && !opts.useProxyWhenNeeded) {
+    } else if (
+      !spData.proof.useProxy ||
+      ('proxyPolicy' in opts && !opts.useProxyWhenNeeded)
+    ) {
       proofData = await serviceproviders.directRequestHandler(spData, opts)
     } else {
       proofData = await serviceproviders.proxyRequestHandler(spData, opts)
@@ -67,13 +80,13 @@ const verify = async (uri, fingerprint, opts) => {
 
   if (!claimVerificationResult) {
     claimVerificationResult = {
-      isVerified: false
+      isVerified: false,
     }
   }
 
   return {
     isVerified: claimVerificationResult.isVerified,
-    serviceproviderData: spData
+    serviceproviderData: spData,
   }
 }
 
diff --git a/src/serviceproviders.js b/src/serviceproviders.js
index d36bf04..00d66fb 100644
--- a/src/serviceproviders.js
+++ b/src/serviceproviders.js
@@ -52,7 +52,8 @@ const data = {
 }
 
 const match = (uri, opts) => {
-  let matches = [], sp
+  let matches = [],
+    sp
 
   list.forEach((spName, i) => {
     sp = data[spName]
@@ -65,7 +66,11 @@ const match = (uri, opts) => {
 }
 
 const directRequestHandler = async (spData, opts) => {
-  const res = await req(spData.proof.fetch ? spData.proof.fetch : spData.proof.uri, null, { Accept: 'application/json' })
+  const res = await req(
+    spData.proof.fetch ? spData.proof.fetch : spData.proof.uri,
+    null,
+    { Accept: 'application/json' }
+  )
 
   switch (spData.proof.format) {
     case 'json':
@@ -82,7 +87,11 @@ const directRequestHandler = async (spData, opts) => {
 
 const proxyRequestHandler = async (spData, opts) => {
   const url = spData.proof.fetch ? spData.proof.fetch : spData.proof.uri
-  const res = await req(utils.generateProxyURL(spData.proof.format, url, opts), null, { Accept: 'application/json' })
+  const res = await req(
+    utils.generateProxyURL(spData.proof.format, url, opts),
+    null,
+    { Accept: 'application/json' }
+  )
   const json = await res.json()
   return json.content
 }
diff --git a/src/serviceproviders/devto.js b/src/serviceproviders/devto.js
index 06a7b7d..dcc451d 100644
--- a/src/serviceproviders/devto.js
+++ b/src/serviceproviders/devto.js
@@ -16,48 +16,50 @@ limitations under the License.
 const reURI = /^https:\/\/dev\.to\/(.*)\/(.*)\/?/
 
 const processURI = (uri, opts) => {
-  if (!opts) { opts = {} }
+  if (!opts) {
+    opts = {}
+  }
   const match = uri.match(reURI)
 
   return {
     serviceprovider: {
       type: 'web',
-      name: 'devto'
+      name: 'devto',
     },
     profile: {
       display: match[1],
       uri: `https://dev.to/${match[1]}`,
-      qr: null
+      qr: null,
     },
     proof: {
       uri: uri,
       fetch: `https://dev.to/api/articles/${match[1]}/${match[2]}`,
       useProxy: false,
-      format: 'json'
+      format: 'json',
     },
     claim: {
       fingerprint: null,
       format: 'message',
       path: ['body_markdown'],
-      relation: 'contains'
+      relation: 'contains',
     },
-    customRequestHandler: null
+    customRequestHandler: null,
   }
 }
 
 const tests = [
   {
     uri: 'https://dev.to/alice/post',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://dev.to/alice/post/',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://domain.org/alice/post',
-    shouldMatch: false
-  }
+    shouldMatch: false,
+  },
 ]
 
 exports.reURI = reURI
diff --git a/src/serviceproviders/discourse.js b/src/serviceproviders/discourse.js
index dc90852..74e23ff 100644
--- a/src/serviceproviders/discourse.js
+++ b/src/serviceproviders/discourse.js
@@ -16,48 +16,50 @@ limitations under the License.
 const reURI = /^https:\/\/(.*)\/u\/(.*)\/?/
 
 const processURI = (uri, opts) => {
-  if (!opts) { opts = {} }
+  if (!opts) {
+    opts = {}
+  }
   const match = uri.match(reURI)
 
   return {
     serviceprovider: {
       type: 'web',
-      name: 'discourse'
+      name: 'discourse',
     },
     profile: {
       display: `${match[2]}@${match[1]}`,
       uri: uri,
-      qr: null
+      qr: null,
     },
     proof: {
       uri: uri,
       fetch: `https://${match[1]}/u/${match[2]}.json`,
       useProxy: true,
-      format: 'json'
+      format: 'json',
     },
     claim: {
       fingerprint: null,
       format: 'message',
       path: ['user', 'bio_raw'],
-      relation: 'contains'
+      relation: 'contains',
     },
-    customRequestHandler: null
+    customRequestHandler: null,
   }
 }
 
 const tests = [
   {
     uri: 'https://domain.org/u/alice',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://domain.org/u/alice/',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://domain.org/alice',
-    shouldMatch: false
-  }
+    shouldMatch: false,
+  },
 ]
 
 exports.reURI = reURI
diff --git a/src/serviceproviders/dns.js b/src/serviceproviders/dns.js
index be1f9b0..ea5aa05 100644
--- a/src/serviceproviders/dns.js
+++ b/src/serviceproviders/dns.js
@@ -20,7 +20,7 @@ const utils = require('../utils')
 const reURI = /^dns:([a-zA-Z0-9\.\-\_]*)(?:\?(.*))?/
 
 const customRequestHandler = async (spData, opts) => {
-  if (('resolveTxt' in dns)) {
+  if ('resolveTxt' in dns) {
     const prom = async () => {
       return new Promise((resolve, reject) => {
         dns.resolveTxt(spData.profile.display, (err, records) => {
@@ -32,59 +32,63 @@ const customRequestHandler = async (spData, opts) => {
     return {
       hostname: spData.profile.display,
       records: {
-        txt: await prom()
-      }
+        txt: await prom(),
+      },
     }
   } else {
-    const res = await req(spData.proof.uri, null, { Accept: 'application/json' })
+    const res = await req(spData.proof.uri, null, {
+      Accept: 'application/json',
+    })
     const json = await res.json()
     return json
   }
 }
 
 const processURI = (uri, opts) => {
-  if (!opts) { opts = {} }
+  if (!opts) {
+    opts = {}
+  }
   const match = uri.match(reURI)
 
   return {
     serviceprovider: {
       type: 'web',
-      name: 'dns'
+      name: 'dns',
     },
     profile: {
       display: match[1],
       uri: `https://${match[1]}`,
-      qr: null
+      qr: null,
     },
     proof: {
       uri: utils.generateProxyURL('dns', match[1]),
       fetch: null,
       useProxy: false,
-      format: 'json'
+      format: 'json',
     },
     claim: {
       fingerprint: null,
       format: 'uri',
       path: ['records', 'txt'],
-      relation: 'contains'
+      relation: 'contains',
     },
-    customRequestHandler: customRequestHandler
+    customRequestHandler: customRequestHandler,
   }
 }
 
 const tests = [
   {
     uri: 'dns:domain.org',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'dns:domain.org?type=TXT',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://domain.org',
-    shouldMatch: false
-  }
+    shouldMatch: false,
+  },
 ]
 
 exports.reURI = reURI
diff --git a/src/serviceproviders/fediverse.js b/src/serviceproviders/fediverse.js
index da62f2a..c193247 100644
--- a/src/serviceproviders/fediverse.js
+++ b/src/serviceproviders/fediverse.js
@@ -16,48 +16,50 @@ limitations under the License.
 const reURI = /^https:\/\/(.*)\/users\/(.*)\/?/
 
 const processURI = (uri, opts) => {
-  if (!opts) { opts = {} }
+  if (!opts) {
+    opts = {}
+  }
   const match = uri.match(reURI)
 
   return {
     serviceprovider: {
       type: 'web',
-      name: 'fediverse'
+      name: 'fediverse',
     },
     profile: {
       display: `@${match[2]}@${match[1]}`,
       uri: uri,
-      qr: null
+      qr: null,
     },
     proof: {
       uri: uri,
       fetch: null,
       useProxy: false,
-      format: 'json'
+      format: 'json',
     },
     claim: {
       fingerprint: null,
       format: 'fingerprint',
       path: ['summary'],
-      relation: 'contains'
+      relation: 'contains',
     },
-    customRequestHandler: null
+    customRequestHandler: null,
   }
 }
 
 const tests = [
   {
     uri: 'https://domain.org/users/alice',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://domain.org/users/alice/',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://domain.org/alice',
-    shouldMatch: false
-  }
+    shouldMatch: false,
+  },
 ]
 
 exports.reURI = reURI
diff --git a/src/serviceproviders/gitea.js b/src/serviceproviders/gitea.js
index 118c488..c4cb915 100644
--- a/src/serviceproviders/gitea.js
+++ b/src/serviceproviders/gitea.js
@@ -16,48 +16,50 @@ limitations under the License.
 const reURI = /^https:\/\/(.*)\/(.*)\/gitea_proof\/?/
 
 const processURI = (uri, opts) => {
-  if (!opts) { opts = {} }
+  if (!opts) {
+    opts = {}
+  }
   const match = uri.match(reURI)
 
   return {
     serviceprovider: {
       type: 'web',
-      name: 'gitea'
+      name: 'gitea',
     },
     profile: {
       display: `${match[2]}@${match[1]}`,
       uri: `https://${match[1]}/${match[2]}`,
-      qr: null
+      qr: null,
     },
     proof: {
       uri: uri,
       fetch: `https://${match[1]}/api/v1/repos/${match[2]}/gitea_proof`,
       useProxy: true,
-      format: 'json'
+      format: 'json',
     },
     claim: {
       fingerprint: null,
       format: 'message',
       path: ['description'],
-      relation: 'equals'
+      relation: 'equals',
     },
-    customRequestHandler: null
+    customRequestHandler: null,
   }
 }
 
 const tests = [
   {
     uri: 'https://domain.org/alice/gitea_proof',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://domain.org/alice/gitea_proof/',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://domain.org/alice/other_proof',
-    shouldMatch: false
-  }
+    shouldMatch: false,
+  },
 ]
 
 exports.reURI = reURI
diff --git a/src/serviceproviders/github.js b/src/serviceproviders/github.js
index 2096697..9b1f6d3 100644
--- a/src/serviceproviders/github.js
+++ b/src/serviceproviders/github.js
@@ -16,48 +16,50 @@ limitations under the License.
 const reURI = /^https:\/\/gist\.github\.com\/(.*)\/(.*)\/?/
 
 const processURI = (uri, opts) => {
-  if (!opts) { opts = {} }
+  if (!opts) {
+    opts = {}
+  }
   const match = uri.match(reURI)
 
   return {
     serviceprovider: {
       type: 'web',
-      name: 'github'
+      name: 'github',
     },
     profile: {
       display: match[1],
       uri: `https://github.com/${match[1]}`,
-      qr: null
+      qr: null,
     },
     proof: {
       uri: uri,
       fetch: `https://api.github.com/gists/${match[2]}`,
       useProxy: false,
-      format: 'json'
+      format: 'json',
     },
     claim: {
       fingerprint: null,
       format: 'message',
       path: ['files', 'openpgp.md', 'content'],
-      relation: 'contains'
+      relation: 'contains',
     },
-    customRequestHandler: null
+    customRequestHandler: null,
   }
 }
 
 const tests = [
   {
     uri: 'https://gist.github.com/Alice/123456789',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://gist.github.com/Alice/123456789/',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://domain.org/Alice/123456789',
-    shouldMatch: false
-  }
+    shouldMatch: false,
+  },
 ]
 
 exports.reURI = reURI
diff --git a/src/serviceproviders/gitlab.js b/src/serviceproviders/gitlab.js
index 16c91c6..b412ace 100644
--- a/src/serviceproviders/gitlab.js
+++ b/src/serviceproviders/gitlab.js
@@ -25,66 +25,68 @@ const customRequestHandler = async (spData, opts) => {
   const resUser = await req(urlUser, 'json', { Accept: 'application/json' })
   const jsonUser = await resUser.json()
 
-  const user = jsonUser.find(user => user.username === match[2])
+  const user = jsonUser.find((user) => user.username === match[2])
   if (!user) {
-    throw new Error(`No user with username ${match[2]}`);
+    throw new Error(`No user with username ${match[2]}`)
   }
 
   const urlProject = `https://${match[1]}/api/v4/users/${user.id}/projects`
   const resProject = await req(urlProject, {}, { Accept: 'application/json' })
   const jsonProject = await resProject.json()
 
-  const project = jsonProject.find(proj => proj.path === 'gitlab_proof')
+  const project = jsonProject.find((proj) => proj.path === 'gitlab_proof')
   if (!project) {
-    throw new Error(`No project at ${spData.proof.uri}`);
+    throw new Error(`No project at ${spData.proof.uri}`)
   }
 
   return project
 }
 
 const processURI = (uri, opts) => {
-  if (!opts) { opts = {} }
+  if (!opts) {
+    opts = {}
+  }
   const match = uri.match(reURI)
 
   return {
     serviceprovider: {
       type: 'web',
-      name: 'gitlab'
+      name: 'gitlab',
     },
     profile: {
       display: `${match[2]}@${match[1]}`,
       uri: `https://${match[1]}/${match[2]}`,
-      qr: null
+      qr: null,
     },
     proof: {
       uri: uri,
       fetch: null,
       useProxy: false,
-      format: 'json'
+      format: 'json',
     },
     claim: {
       fingerprint: null,
       format: 'message',
       path: ['description'],
-      relation: 'equals'
+      relation: 'equals',
     },
-    customRequestHandler: customRequestHandler
+    customRequestHandler: customRequestHandler,
   }
 }
 
 const tests = [
   {
     uri: 'https://gitlab.domain.org/alice/gitlab_proof',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://gitlab.domain.org/alice/gitlab_proof/',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://domain.org/alice/other_proof',
-    shouldMatch: false
-  }
+    shouldMatch: false,
+  },
 ]
 
 exports.reURI = reURI
diff --git a/src/serviceproviders/hackernews.js b/src/serviceproviders/hackernews.js
index 2783229..b74762e 100644
--- a/src/serviceproviders/hackernews.js
+++ b/src/serviceproviders/hackernews.js
@@ -16,48 +16,50 @@ limitations under the License.
 const reURI = /^https:\/\/news\.ycombinator\.com\/user\?id=(.*)\/?/
 
 const processURI = (uri, opts) => {
-  if (!opts) { opts = {} }
+  if (!opts) {
+    opts = {}
+  }
   const match = uri.match(reURI)
 
   return {
     serviceprovider: {
       type: 'web',
-      name: 'hackernews'
+      name: 'hackernews',
     },
     profile: {
       display: match[1],
       uri: uri,
-      qr: null
+      qr: null,
     },
     proof: {
       uri: `https://hacker-news.firebaseio.com/v0/user/${match[1]}.json`,
       fetch: null,
       useProxy: true,
-      format: 'json'
+      format: 'json',
     },
     claim: {
       fingerprint: null,
       format: 'uri',
       path: ['about'],
-      relation: 'contains'
+      relation: 'contains',
     },
-    customRequestHandler: null
+    customRequestHandler: null,
   }
 }
 
 const tests = [
   {
     uri: 'https://news.ycombinator.com/user?id=Alice',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://news.ycombinator.com/user?id=Alice/',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://domain.org/user?id=Alice',
-    shouldMatch: false
-  }
+    shouldMatch: false,
+  },
 ]
 
 exports.reURI = reURI
diff --git a/src/serviceproviders/liberapay.js b/src/serviceproviders/liberapay.js
index 4d9cad9..7e7d359 100644
--- a/src/serviceproviders/liberapay.js
+++ b/src/serviceproviders/liberapay.js
@@ -16,48 +16,50 @@ limitations under the License.
 const reURI = /^https:\/\/liberapay\.com\/(.*)\/?/
 
 const processURI = (uri, opts) => {
-  if (!opts) { opts = {} }
+  if (!opts) {
+    opts = {}
+  }
   const match = uri.match(reURI)
 
   return {
     serviceprovider: {
       type: 'web',
-      name: 'liberapay'
+      name: 'liberapay',
     },
     profile: {
       display: match[1],
       uri: uri,
-      qr: null
+      qr: null,
     },
     proof: {
       uri: uri,
       fetch: `https://liberapay.com/${match[1]}/public.json`,
       useProxy: false,
-      format: 'json'
+      format: 'json',
     },
     claim: {
       fingerprint: null,
       format: 'message',
       path: ['statements', 'content'],
-      relation: 'contains'
+      relation: 'contains',
     },
-    customRequestHandler: null
+    customRequestHandler: null,
   }
 }
 
 const tests = [
   {
     uri: 'https://liberapay.com/alice',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://liberapay.com/alice/',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://domain.org/alice',
-    shouldMatch: false
-  }
+    shouldMatch: false,
+  },
 ]
 
 exports.reURI = reURI
diff --git a/src/serviceproviders/lobsters.js b/src/serviceproviders/lobsters.js
index 4dd65b8..8f0399b 100644
--- a/src/serviceproviders/lobsters.js
+++ b/src/serviceproviders/lobsters.js
@@ -16,48 +16,50 @@ limitations under the License.
 const reURI = /^https:\/\/lobste\.rs\/u\/(.*)\/?/
 
 const processURI = (uri, opts) => {
-  if (!opts) { opts = {} }
+  if (!opts) {
+    opts = {}
+  }
   const match = uri.match(reURI)
 
   return {
     serviceprovider: {
       type: 'web',
-      name: 'lobsters'
+      name: 'lobsters',
     },
     profile: {
       display: match[1],
       uri: uri,
-      qr: null
+      qr: null,
     },
     proof: {
       uri: `https://lobste.rs/u/${match[1]}.json`,
       fetch: null,
       useProxy: true,
-      format: 'json'
+      format: 'json',
     },
     claim: {
       fingerprint: null,
       format: 'message',
       path: ['about'],
-      relation: 'contains'
+      relation: 'contains',
     },
-    customRequestHandler: null
+    customRequestHandler: null,
   }
 }
 
 const tests = [
   {
     uri: 'https://lobste.rs/u/Alice',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://lobste.rs/u/Alice/',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://domain.org/u/Alice',
-    shouldMatch: false
-  }
+    shouldMatch: false,
+  },
 ]
 
 exports.reURI = reURI
diff --git a/src/serviceproviders/mastodon.js b/src/serviceproviders/mastodon.js
index 47e4334..f84b70f 100644
--- a/src/serviceproviders/mastodon.js
+++ b/src/serviceproviders/mastodon.js
@@ -16,48 +16,50 @@ limitations under the License.
 const reURI = /^https:\/\/(.*)\/@(.*)\/?/
 
 const processURI = (uri, opts) => {
-  if (!opts) { opts = {} }
+  if (!opts) {
+    opts = {}
+  }
   const match = uri.match(reURI)
 
   return {
     serviceprovider: {
       type: 'web',
-      name: 'mastodon'
+      name: 'mastodon',
     },
     profile: {
       display: `@${match[2]}@${match[1]}`,
       uri: uri,
-      qr: null
+      qr: null,
     },
     proof: {
       uri: uri,
       fetch: null,
       useProxy: false,
-      format: 'json'
+      format: 'json',
     },
     claim: {
       fingerprint: null,
       format: 'fingerprint',
       path: ['attachment', 'value'],
-      relation: 'contains'
+      relation: 'contains',
     },
-    customRequestHandler: null
+    customRequestHandler: null,
   }
 }
 
 const tests = [
   {
     uri: 'https://domain.org/@alice',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://domain.org/@alice/',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://domain.org/alice',
-    shouldMatch: false
-  }
+    shouldMatch: false,
+  },
 ]
 
 exports.reURI = reURI
diff --git a/src/serviceproviders/reddit.js b/src/serviceproviders/reddit.js
index 81dc6c9..88cb500 100644
--- a/src/serviceproviders/reddit.js
+++ b/src/serviceproviders/reddit.js
@@ -16,56 +16,58 @@ limitations under the License.
 const reURI = /^https:\/\/(?:www\.)?reddit\.com\/user\/(.*)\/comments\/(.*)\/(.*)\/?/
 
 const processURI = (uri, opts) => {
-  if (!opts) { opts = {} }
+  if (!opts) {
+    opts = {}
+  }
   const match = uri.match(reURI)
 
   return {
     serviceprovider: {
       type: 'web',
-      name: 'reddit'
+      name: 'reddit',
     },
     profile: {
       display: match[1],
       uri: `https://www.reddit.com/user/${match[1]}`,
-      qr: null
+      qr: null,
     },
     proof: {
       uri: uri,
       fetch: `https://www.reddit.com/user/${match[1]}/comments/${match[2]}.json`,
       useProxy: true,
-      format: 'json'
+      format: 'json',
     },
     claim: {
       fingerprint: null,
       format: 'message',
       path: ['data', 'children', 'data', 'selftext'],
-      relation: 'contains'
+      relation: 'contains',
     },
-    customRequestHandler: null
+    customRequestHandler: null,
   }
 }
 
 const tests = [
   {
     uri: 'https://www.reddit.com/user/Alice/comments/123456/post',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://www.reddit.com/user/Alice/comments/123456/post/',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://reddit.com/user/Alice/comments/123456/post',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://reddit.com/user/Alice/comments/123456/post/',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://domain.org/user/Alice/comments/123456/post',
-    shouldMatch: false
-  }
+    shouldMatch: false,
+  },
 ]
 
 exports.reURI = reURI
diff --git a/src/serviceproviders/twitter.js b/src/serviceproviders/twitter.js
index e6fb4b2..7d9f015 100644
--- a/src/serviceproviders/twitter.js
+++ b/src/serviceproviders/twitter.js
@@ -16,48 +16,50 @@ limitations under the License.
 const reURI = /^https:\/\/twitter\.com\/(.*)\/status\/([0-9]*)(?:\?.*)?/
 
 const processURI = (uri, opts) => {
-  if (!opts) { opts = {} }
+  if (!opts) {
+    opts = {}
+  }
   const match = uri.match(reURI)
 
   return {
     serviceprovider: {
       type: 'web',
-      name: 'twitter'
+      name: 'twitter',
     },
     profile: {
       display: `@${match[1]}`,
       uri: `https://twitter.com/${match[1]}`,
-      qr: null
+      qr: null,
     },
     proof: {
       uri: uri,
       fetch: `https://mobile.twitter.com/${match[1]}/status/${match[2]}`,
       useProxy: false,
-      format: 'text'
+      format: 'text',
     },
     claim: {
       fingerprint: null,
       format: 'message',
       path: [],
-      relation: 'contains'
+      relation: 'contains',
     },
-    customRequestHandler: null
+    customRequestHandler: null,
   }
 }
 
 const tests = [
   {
     uri: 'https://twitter.com/alice/status/1234567890123456789',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://twitter.com/alice/status/1234567890123456789/',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://domain.org/alice/status/1234567890123456789',
-    shouldMatch: false
-  }
+    shouldMatch: false,
+  },
 ]
 
 exports.reURI = reURI
diff --git a/src/serviceproviders/xmpp.js b/src/serviceproviders/xmpp.js
index a0a0524..477e863 100644
--- a/src/serviceproviders/xmpp.js
+++ b/src/serviceproviders/xmpp.js
@@ -16,50 +16,53 @@ limitations under the License.
 const reURI = /^xmpp:([a-zA-Z0-9\.\-\_]*)@([a-zA-Z0-9\.\-\_]*)(?:\?(.*))?/
 
 const processURI = (uri, opts) => {
-  if (!opts) { opts = {} }
+  if (!opts) {
+    opts = {}
+  }
   const match = uri.match(reURI)
 
   return {
     serviceprovider: {
       type: 'communication',
-      name: 'xmpp'
+      name: 'xmpp',
     },
     profile: {
       display: `${match[1]}@${match[2]}`,
       uri: uri,
-      qr: uri
+      qr: uri,
     },
     proof: {
-      uri: 'xmppVcardServerDomain' in opts
-           ? `https://${opts.xmppVcardServerDomain}/api/vcard/${match[1]}@${match[2]}/DESC`
-           : null,
+      uri:
+        'xmppVcardServerDomain' in opts
+          ? `https://${opts.xmppVcardServerDomain}/api/vcard/${match[1]}@${match[2]}/DESC`
+          : null,
       fetch: null,
       useProxy: false,
-      format: 'json'
+      format: 'json',
     },
     claim: {
       fingerprint: null,
       format: 'message',
       path: [],
-      relation: 'contains'
+      relation: 'contains',
     },
-    customRequestHandler: null
+    customRequestHandler: null,
   }
 }
 
 const tests = [
   {
     uri: 'xmpp:alice@domain.org',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'xmpp:alice@domain.org?omemo-sid-123456789=A1B2C3D4E5F6G7H8I9',
-    shouldMatch: true
+    shouldMatch: true,
   },
   {
     uri: 'https://domain.org',
-    shouldMatch: false
-  }
+    shouldMatch: false,
+  },
 ]
 
 exports.reURI = reURI
diff --git a/src/utils.js b/src/utils.js
index 00bd60f..9050f7d 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -1,19 +1,23 @@
 const generateProxyURL = (type, url, opts) => {
-  if (!opts || !opts.doipProxyHostname) { return null }
-  return `https://${opts.doipProxyHostname}/api/1/get/${type}/${encodeURIComponent(url)}`
+  if (!opts || !opts.doipProxyHostname) {
+    return null
+  }
+  return `https://${
+    opts.doipProxyHostname
+  }/api/1/get/${type}/${encodeURIComponent(url)}`
 }
 
 const generateClaim = (fingerprint, format) => {
   switch (format) {
     case 'uri':
       return `openpgp4fpr:${fingerprint}`
-      break;
+      break
     case 'message':
       return `[Verifying my OpenPGP key: openpgp4fpr:${fingerprint}]`
-      break;
+      break
     case 'fingerprint':
       return fingerprint
-      break;
+      break
     default:
       throw new Error('No valid claim format')
   }
diff --git a/test/serviceproviders.test.js b/test/serviceproviders.test.js
index df4e606..3c509c0 100644
--- a/test/serviceproviders.test.js
+++ b/test/serviceproviders.test.js
@@ -37,14 +37,15 @@ doipjs.serviceproviders.list.forEach((sp, i) => {
     doipjs.serviceproviders.data[sp].tests.forEach((test, j) => {
       if (test.shouldMatch) {
         it(`should match "${test.uri}"`, () => {
-          expect(doipjs.serviceproviders.data[sp].reURI.test(test.uri)).to.be.true
+          expect(doipjs.serviceproviders.data[sp].reURI.test(test.uri)).to.be
+            .true
         })
       } else {
         it(`should not match "${test.uri}"`, () => {
-          expect(doipjs.serviceproviders.data[sp].reURI.test(test.uri)).to.be.false
+          expect(doipjs.serviceproviders.data[sp].reURI.test(test.uri)).to.be
+            .false
         })
       }
     })
-
   })
 })
diff --git a/test/utils.test.js b/test/utils.test.js
index 4aa86cd..fb785e8 100644
--- a/test/utils.test.js
+++ b/test/utils.test.js
@@ -24,12 +24,18 @@ describe('utils.generateClaim', () => {
     expect(doipjs.utils.generateClaim).to.have.length(2)
   })
   it('should generate a correct "uri" claim', () => {
-    expect(doipjs.utils.generateClaim('123456789', 'uri')).to.equal('openpgp4fpr:123456789')
+    expect(doipjs.utils.generateClaim('123456789', 'uri')).to.equal(
+      'openpgp4fpr:123456789'
+    )
   })
   it('should generate a correct "message" claim', () => {
-    expect(doipjs.utils.generateClaim('123456789', 'message')).to.equal('[Verifying my OpenPGP key: openpgp4fpr:123456789]')
+    expect(doipjs.utils.generateClaim('123456789', 'message')).to.equal(
+      '[Verifying my OpenPGP key: openpgp4fpr:123456789]'
+    )
   })
   it('should generate a correct "fingerprint" claim', () => {
-    expect(doipjs.utils.generateClaim('123456789', 'fingerprint')).to.equal('123456789')
+    expect(doipjs.utils.generateClaim('123456789', 'fingerprint')).to.equal(
+      '123456789'
+    )
   })
 })
diff --git a/test/verify.test.js b/test/verify.test.js
index e43c400..cdd801d 100644
--- a/test/verify.test.js
+++ b/test/verify.test.js
@@ -17,7 +17,7 @@ const chai = require('chai')
 const expect = chai.expect
 const chaiMatchPattern = require('chai-match-pattern')
 chai.use(chaiMatchPattern)
-chai.use(require("chai-as-promised"))
+chai.use(require('chai-as-promised'))
 
 const _ = chaiMatchPattern.getLodashModule()
 const doipjs = require('../src')
@@ -25,26 +25,36 @@ const doipjs = require('../src')
 const pattern = {
   serviceprovider: {
     type: _.isString,
-    name: _.isString
+    name: _.isString,
   },
   profile: {
     display: _.isString,
     uri: _.isString,
-    qr: (x) => { return _.isString(x) || _.isNull(x) }
+    qr: (x) => {
+      return _.isString(x) || _.isNull(x)
+    },
   },
   proof: {
-    uri: (x) => { return _.isString(x) || _.isNull(x) },
-    fetch: (x) => { return _.isString(x) || _.isNull(x) },
+    uri: (x) => {
+      return _.isString(x) || _.isNull(x)
+    },
+    fetch: (x) => {
+      return _.isString(x) || _.isNull(x)
+    },
     useProxy: _.isBoolean,
-    format: _.isString
+    format: _.isString,
   },
   claim: {
-    fingerprint: (x) => { return _.isString(x) || _.isNull(x) },
+    fingerprint: (x) => {
+      return _.isString(x) || _.isNull(x)
+    },
     format: _.isString,
     path: _.isArray,
-    relation: _.isString
+    relation: _.isString,
+  },
+  customRequestHandler: (x) => {
+    return _.isFunction(x) || _.isNull(x) || _.isUndefined(x)
   },
-  customRequestHandler: (x) => { return _.isFunction(x) || _.isNull(x) || _.isUndefined(x) }
 }
 
 describe('verify', () => {
@@ -53,17 +63,25 @@ describe('verify', () => {
     expect(doipjs.verify).to.have.length(3)
   })
   it('should throw an error for non-valid URIs', () => {
-    return expect(doipjs.verify('noURI')).to.eventually.be.rejectedWith('Not a valid URI')
-    return expect(doipjs.verify('domain.org')).to.eventually.be.rejectedWith('Not a valid URI')
+    return expect(doipjs.verify('noURI')).to.eventually.be.rejectedWith(
+      'Not a valid URI'
+    )
+    return expect(doipjs.verify('domain.org')).to.eventually.be.rejectedWith(
+      'Not a valid URI'
+    )
   })
 
   doipjs.serviceproviders.list.forEach((spName, i) => {
     const sp = doipjs.serviceproviders.data[spName]
 
-    if (sp.tests.length == 0) { return }
+    if (sp.tests.length == 0) {
+      return
+    }
 
     it(`should return a valid object for the "${spName}" service provider`, async () => {
-      const matches = await doipjs.verify(sp.tests[0].uri, null, {returnMatchesOnly: true})
+      const matches = await doipjs.verify(sp.tests[0].uri, null, {
+        returnMatchesOnly: true,
+      })
       expect(matches).to.be.a('array')
       expect(matches).to.be.length.above(0)
       expect(matches[0].serviceprovider.name).to.be.equal(spName)