Fix tests. General refactor

21 files changed, 111 insertions, 260 deletions

diff --git a/frontend/src/backend.js b/frontend/src/backend.js
index cc8604a..dc5089f 100644
--- a/frontend/src/backend.js
+++ b/frontend/src/backend.js
@@ -17,7 +17,7 @@
 
 async function json(method, url, data, json, headers) {
     const options = {
-        method: method,
+        method,
         body: json != null ? JSON.stringify(json) : data,
         mode: "cors",
         cache: "no-cache",
diff --git a/frontend/src/components/Notifications.js b/frontend/src/components/Notifications.js
index 92731d9..a81eba1 100644
--- a/frontend/src/components/Notifications.js
+++ b/frontend/src/components/Notifications.js
@@ -67,7 +67,7 @@ class Notifications extends Component {
                 n.variant = "blue";
                 return this.pushNotification(n);
             default:
-                return;
+                return null;
         }
     };
 
diff --git a/frontend/src/components/Notifications.scss b/frontend/src/components/Notifications.scss
index 98d228e..5852c7d 100644
--- a/frontend/src/components/Notifications.scss
+++ b/frontend/src/components/Notifications.scss
@@ -32,7 +32,7 @@
     }
 
     &.notification-open {
-      transform: translateX(0px);
+      transform: translateX(0);
     }
 
     &.notification-closed {
diff --git a/frontend/src/components/fields/ChoiceField.scss b/frontend/src/components/fields/ChoiceField.scss
index c8c7ff1..85986af 100644
--- a/frontend/src/components/fields/ChoiceField.scss
+++ b/frontend/src/components/fields/ChoiceField.scss
@@ -27,8 +27,8 @@
     }
 
     .field-options {
-      position: absolute;
-      z-index: 20;
+      position: static;
+      z-index: 100;
       top: 35px;
       display: none;
       width: 100%;
diff --git a/frontend/src/components/fields/InputField.scss b/frontend/src/components/fields/InputField.scss
index e8ef46a..eafb2ab 100644
--- a/frontend/src/components/fields/InputField.scss
+++ b/frontend/src/components/fields/InputField.scss
@@ -47,15 +47,15 @@
       background-color: $color-primary-4 !important;
     }
 
+    .file-label::after {
+      background-color: $color-secondary-4 !important;
+    }
+
     .field-value input,
     .field-value .file-label {
       color: $color-primary-3 !important;
       background-color: $color-primary-4 !important;
     }
-
-    .file-label::after {
-      background-color: $color-secondary-4 !important;
-    }
   }
 
   &.field-invalid {
diff --git a/frontend/src/components/fields/TagField.scss b/frontend/src/components/fields/TagField.scss
index 737f11f..723e71f 100644
--- a/frontend/src/components/fields/TagField.scss
+++ b/frontend/src/components/fields/TagField.scss
@@ -10,6 +10,18 @@
     }
   }
 
+  .react-tags {
+    position: relative;
+    display: flex;
+    border-radius: 4px;
+    background-color: $color-primary-2;
+
+    &:focus-within,
+    &:focus-within .react-tags__search-input {
+      background-color: $color-primary-1;
+    }
+  }
+
   &.field-small {
     font-size: 0.8em;
   }
@@ -39,18 +51,6 @@
     }
   }
 
-  .react-tags {
-    position: relative;
-    display: flex;
-    border-radius: 4px;
-    background-color: $color-primary-2;
-
-    &:focus-within,
-    &:focus-within .react-tags__search-input {
-      background-color: $color-primary-1;
-    }
-  }
-
   .react-tags__selected {
     display: inline-block;
     flex: 0 1;
@@ -154,4 +154,4 @@
     cursor: auto;
     opacity: 0.5;
   }
-}
\ No newline at end of file
+}
diff --git a/frontend/src/components/filters/AdvancedFilters.js b/frontend/src/components/filters/AdvancedFilters.js
index 2b479ed..15667a5 100644
--- a/frontend/src/components/filters/AdvancedFilters.js
+++ b/frontend/src/components/filters/AdvancedFilters.js
@@ -33,7 +33,7 @@ class AdvancedFilters extends Component {
             const active = ["client_address", "client_port", "min_duration", "max_duration", "min_bytes", "max_bytes"]
                 .some(f => this.urlParams.has(f));
             if (this.state.active !== active) {
-                this.setState({active: active});
+                this.setState({active});
             }
         };
         dispatcher.register("connections_filters", this.connectionsFiltersCallback);
diff --git a/frontend/src/components/filters/RulesConnectionsFilter.js b/frontend/src/components/filters/RulesConnectionsFilter.js
index 86eae7e..37d36b7 100644
--- a/frontend/src/components/filters/RulesConnectionsFilter.js
+++ b/frontend/src/components/filters/RulesConnectionsFilter.js
@@ -35,17 +35,17 @@ class RulesConnectionsFilter extends Component {
         const params = new URLSearchParams(this.props.location.search);
         let activeRules = params.getAll("matched_rules") || [];
 
-        backend.get("/api/rules").then(res => {
-            let rules = res.json.flatMap(rule => rule.enabled ? [{id: rule.id, name: rule.name}] : []);
-            activeRules = rules.filter(rule => activeRules.some(id => rule.id === id));
+        backend.get("/api/rules").then((res) => {
+            let rules = res.json.flatMap((rule) => rule.enabled ? [{id: rule.id, name: rule.name}] : []);
+            activeRules = rules.filter((rule) => activeRules.some(id => rule.id === id));
             this.setState({rules, activeRules});
         });
 
-        this.connectionsFiltersCallback = payload => {
+        this.connectionsFiltersCallback = (payload) => {
             if ("matched_rules" in payload && !_.isEqual(payload["matched_rules"].sort(), this.state.activeRules.sort())) {
-                const newRules = this.state.rules.filter(r => payload["matched_rules"].includes(r.id));
+                const newRules = this.state.rules.filter((r) => payload["matched_rules"].includes(r.id));
                 this.setState({
-                    activeRules: newRules.map(r => {
+                    activeRules: newRules.map((r) => {
                         return {id: r.id, name: r.name};
                     })
                 });
@@ -61,7 +61,7 @@ class RulesConnectionsFilter extends Component {
     onChange = (activeRules) => {
         if (!_.isEqual(activeRules.sort(), this.state.activeRules.sort())) {
             this.setState({activeRules});
-            dispatcher.dispatch("connections_filters", {"matched_rules": activeRules.map(r => r.id)});
+            dispatcher.dispatch("connections_filters", {"matched_rules": activeRules.map((r) => r.id)});
         }
     };
 
diff --git a/frontend/src/components/filters/StringConnectionsFilter.js b/frontend/src/components/filters/StringConnectionsFilter.js
index c3c5925..c5d7075 100644
--- a/frontend/src/components/filters/StringConnectionsFilter.js
+++ b/frontend/src/components/filters/StringConnectionsFilter.js
@@ -33,7 +33,7 @@ class StringConnectionsFilter extends Component {
         let params = new URLSearchParams(this.props.location.search);
         this.updateStateFromFilterValue(params.get(this.props.filterName));
 
-        this.connectionsFiltersCallback = payload => {
+        this.connectionsFiltersCallback = (payload) => {
             const name = this.props.filterName;
             if (name in payload && this.state.filterValue !== payload[name]) {
                 this.updateStateFromFilterValue(payload[name]);
@@ -56,7 +56,7 @@ class StringConnectionsFilter extends Component {
                 fieldValue = this.props.replaceFunc(fieldValue);
             }
             if (this.isValueValid(fieldValue)) {
-                this.setState({fieldValue, filterValue: filterValue});
+                this.setState({fieldValue, filterValue});
             } else {
                 this.setState({fieldValue, invalidValue: true});
             }
@@ -98,9 +98,9 @@ class StringConnectionsFilter extends Component {
             }
 
             this.setState({
-                fieldValue: fieldValue,
+                fieldValue,
                 timeoutHandle: setTimeout(() => {
-                    this.setState({filterValue: filterValue});
+                    this.setState({filterValue});
                     this.changeFilterValue(filterValue);
                 }, 500),
                 invalidValue: false
diff --git a/frontend/src/components/pages/ConfigurationPage.js b/frontend/src/components/pages/ConfigurationPage.js
index 2bd2da7..4f0ce21 100644
--- a/frontend/src/components/pages/ConfigurationPage.js
+++ b/frontend/src/components/pages/ConfigurationPage.js
@@ -59,11 +59,11 @@ class ConfigurationPage extends Component {
 
     validateSettings = (settings) => {
         let valid = true;
-        if (!validation.isValidAddress(settings.config.server_address, true)) {
+        if (!validation.isValidAddress(settings.config["server_address"], true)) {
             this.setState({serverAddressError: "invalid ip_address"});
             valid = false;
         }
-        if (settings.config.flag_regex.length < 8) {
+        if (settings.config["flag_regex"].length < 8) {
             this.setState({flagRegexError: "flag_regex.length < 8"});
             valid = false;
         }
@@ -84,7 +84,7 @@ class ConfigurationPage extends Component {
             this.setState({
                 newUsername: "",
                 newPassword: "",
-                settings: settings
+                settings
             });
         } else {
             this.setState({
@@ -128,15 +128,15 @@ class ConfigurationPage extends Component {
                                 <Container className="p-0">
                                     <Row>
                                         <Col>
-                                            <InputField name="server_address" value={settings.config.server_address}
+                                            <InputField name="server_address" value={settings.config["server_address"]}
                                                         error={this.state.serverAddressError}
-                                                        onChange={(v) => this.updateParam((s) => s.config.server_address = v)}/>
-                                            <InputField name="flag_regex" value={settings.config.flag_regex}
-                                                        onChange={(v) => this.updateParam((s) => s.config.flag_regex = v)}
+                                                        onChange={(v) => this.updateParam((s) => s.config["server_address"] = v)}/>
+                                            <InputField name="flag_regex" value={settings.config["flag_regex"]}
+                                                        onChange={(v) => this.updateParam((s) => s.config["flag_regex"] = v)}
                                                         error={this.state.flagRegexError}/>
                                             <div style={{"marginTop": "10px"}}>
-                                                <CheckField checked={settings.config.auth_required} name="auth_required"
-                                                            onChange={(v) => this.updateParam((s) => s.config.auth_required = v)}/>
+                                                <CheckField checked={settings.config["auth_required"]} name="auth_required"
+                                                            onChange={(v) => this.updateParam((s) => s.config["auth_required"] = v)}/>
                                             </div>
 
                                         </Col>
diff --git a/frontend/src/components/panels/ConnectionsPane.js b/frontend/src/components/panels/ConnectionsPane.js
index 23c6114..9418fad 100644
--- a/frontend/src/components/panels/ConnectionsPane.js
+++ b/frontend/src/components/panels/ConnectionsPane.js
@@ -178,7 +178,7 @@ class ConnectionsPane extends Component {
         let firstConnection = this.state.firstConnection;
         let lastConnection = this.state.lastConnection;
 
-        if (additionalParams !== undefined && additionalParams.from !== undefined && additionalParams.to === undefined) {
+        if (additionalParams && additionalParams.from && !additionalParams.to) {
             if (res.length > 0) {
                 if (!isInitial) {
                     res = res.slice(1);
@@ -194,7 +194,7 @@ class ConnectionsPane extends Component {
                     firstConnection = connections[0];
                 }
             }
-        } else if (additionalParams !== undefined && additionalParams.to !== undefined && additionalParams.from === undefined) {
+        } else if (additionalParams && additionalParams.to && !additionalParams.from) {
             if (res.length > 0) {
                 connections = res.slice(0, res.length - 1).concat(this.state.connections);
                 firstConnection = connections[0];
@@ -215,12 +215,7 @@ class ConnectionsPane extends Component {
             }
         }
 
-        this.setState({
-            loading: false,
-            connections: connections,
-            firstConnection: firstConnection,
-            lastConnection: lastConnection
-        });
+        this.setState({loading: false, connections, firstConnection, lastConnection});
 
         if (firstConnection != null && lastConnection != null) {
             dispatcher.dispatch("connection_updates", {
diff --git a/frontend/src/components/panels/PcapsPane.js b/frontend/src/components/panels/PcapsPane.js
index 64e7804..ddc5948 100644
--- a/frontend/src/components/panels/PcapsPane.js
+++ b/frontend/src/components/panels/PcapsPane.js
@@ -181,15 +181,15 @@ class PcapsPane extends Component {
         };
 
         const uploadCurlCommand = createCurlCommand("/pcap/upload", "POST", null, {
-            file: "@" + ((this.state.uploadSelectedFile != null && this.state.isUploadFileValid) ?
+            "file": "@" + ((this.state.uploadSelectedFile != null && this.state.isUploadFileValid) ?
                 this.state.uploadSelectedFile.name : "invalid.pcap"),
-            flush_all: this.state.uploadFlushAll
+            "flush_all": this.state.uploadFlushAll
         });
 
         const fileCurlCommand = createCurlCommand("/pcap/file", "POST", {
-            file: this.state.fileValue,
-            flush_all: this.state.processFlushAll,
-            delete_original_file: this.state.deleteOriginalFile
+            "file": this.state.fileValue,
+            "flush_all": this.state.processFlushAll,
+            "delete_original_file": this.state.deleteOriginalFile
         });
 
         return (
diff --git a/frontend/src/components/panels/RulesPane.js b/frontend/src/components/panels/RulesPane.js
index d872b47..0bbd407 100644
--- a/frontend/src/components/panels/RulesPane.js
+++ b/frontend/src/components/panels/RulesPane.js
@@ -142,23 +142,23 @@ class RulesPane extends Component {
             this.setState({ruleColorError: "color is not hexcolor"});
             valid = false;
         }
-        if (!validation.isValidPort(rule.filter.service_port)) {
+        if (!validation.isValidPort(rule.filter["service_port"])) {
             this.setState({ruleServicePortError: "service_port > 65565"});
             valid = false;
         }
-        if (!validation.isValidPort(rule.filter.client_port)) {
+        if (!validation.isValidPort(rule.filter["client_port"])) {
             this.setState({ruleClientPortError: "client_port > 65565"});
             valid = false;
         }
-        if (!validation.isValidAddress(rule.filter.client_address)) {
+        if (!validation.isValidAddress(rule.filter["client_address"])) {
             this.setState({ruleClientAddressError: "client_address is not ip_address"});
             valid = false;
         }
-        if (rule.filter.min_duration > rule.filter.max_duration) {
+        if (rule.filter["min_duration"] > rule.filter["max_duration"]) {
             this.setState({ruleDurationError: "min_duration > max_dur."});
             valid = false;
         }
-        if (rule.filter.min_bytes > rule.filter.max_bytes) {
+        if (rule.filter["min_bytes"] > rule.filter["max_bytes"]) {
             this.setState({ruleBytesError: "min_bytes > max_bytes"});
             valid = false;
         }
@@ -175,9 +175,9 @@ class RulesPane extends Component {
         const newPattern = _.cloneDeep(this.emptyPattern);
         this.setState({
             selectedRule: null,
-            newRule: newRule,
+            newRule,
             selectedPattern: null,
-            newPattern: newPattern,
+            newPattern,
             patternRegexFocused: false,
             patternOccurrencesFocused: false,
             ruleNameError: null,
@@ -210,9 +210,7 @@ class RulesPane extends Component {
 
         const newPattern = _.cloneDeep(this.emptyPattern);
         this.currentRule().patterns.push(pattern);
-        this.setState({
-            newPattern: newPattern
-        });
+        this.setState({newPattern});
     };
 
     editPattern = (pattern) => {
@@ -237,7 +235,7 @@ class RulesPane extends Component {
             valid = false;
             this.setState({patternRegexFocused: true});
         }
-        if (pattern.min_occurrences > pattern.max_occurrences) {
+        if (pattern["min_occurrences"] > pattern["max_occurrences"]) {
             valid = false;
             this.setState({patternOccurrencesFocused: true});
         }
@@ -273,25 +271,25 @@ class RulesPane extends Component {
                                     this.setState({patternRegexFocused: pattern.regex === ""});
                                 }}/>
                 </td>
-                <td><CheckField small checked={pattern.flags.caseless}
-                                onChange={(v) => this.updateParam(() => pattern.flags.caseless = v)}/></td>
-                <td><CheckField small checked={pattern.flags.dot_all}
-                                onChange={(v) => this.updateParam(() => pattern.flags.dot_all = v)}/></td>
-                <td><CheckField small checked={pattern.flags.multi_line}
-                                onChange={(v) => this.updateParam(() => pattern.flags.multi_line = v)}/></td>
-                <td><CheckField small checked={pattern.flags.utf_8_mode}
-                                onChange={(v) => this.updateParam(() => pattern.flags.utf_8_mode = v)}/></td>
-                <td><CheckField small checked={pattern.flags.unicode_property}
-                                onChange={(v) => this.updateParam(() => pattern.flags.unicode_property = v)}/></td>
+                <td><CheckField small checked={pattern.flags["caseless"]}
+                                onChange={(v) => this.updateParam(() => pattern.flags["caseless"] = v)}/></td>
+                <td><CheckField small checked={pattern.flags["dot_all"]}
+                                onChange={(v) => this.updateParam(() => pattern.flags["dot_all"] = v)}/></td>
+                <td><CheckField small checked={pattern.flags["multi_line"]}
+                                onChange={(v) => this.updateParam(() => pattern.flags["multi_line"] = v)}/></td>
+                <td><CheckField small checked={pattern.flags["utf_8_mode"]}
+                                onChange={(v) => this.updateParam(() => pattern.flags["utf_8_mode"] = v)}/></td>
+                <td><CheckField small checked={pattern.flags["unicode_property"]}
+                                onChange={(v) => this.updateParam(() => pattern.flags["unicode_property"] = v)}/></td>
                 <td style={{"width": "70px"}}>
-                    <NumericField small value={pattern.min_occurrences}
+                    <NumericField small value={pattern["min_occurrences"]}
                                   active={this.state.patternOccurrencesFocused}
-                                  onChange={(v) => this.updateParam(() => pattern.min_occurrences = v)}/>
+                                  onChange={(v) => this.updateParam(() => pattern["min_occurrences"] = v)}/>
                 </td>
                 <td style={{"width": "70px"}}>
-                    <NumericField small value={pattern.max_occurrences}
+                    <NumericField small value={pattern["max_occurrences"]}
                                   active={this.state.patternOccurrencesFocused}
-                                  onChange={(v) => this.updateParam(() => pattern.max_occurrences = v)}/>
+                                  onChange={(v) => this.updateParam(() => pattern["max_occurrences"] = v)}/>
                 </td>
                 <td><ChoiceField inline small keys={[0, 1, 2]} values={["both", "c->s", "s->c"]}
                                  value={this.directions[pattern.direction]}
@@ -305,13 +303,13 @@ class RulesPane extends Component {
             :
             <tr key={"new_pattern"} className="row-small">
                 <td>{p.regex}</td>
-                <td>{p.flags.caseless ? "yes" : "no"}</td>
-                <td>{p.flags.dot_all ? "yes" : "no"}</td>
-                <td>{p.flags.multi_line ? "yes" : "no"}</td>
-                <td>{p.flags.utf_8_mode ? "yes" : "no"}</td>
-                <td>{p.flags.unicode_property ? "yes" : "no"}</td>
-                <td>{p.min_occurrences}</td>
-                <td>{p.max_occurrences}</td>
+                <td>{p.flags["caseless"] ? "yes" : "no"}</td>
+                <td>{p.flags["dot_all"] ? "yes" : "no"}</td>
+                <td>{p.flags["multi_line"] ? "yes" : "no"}</td>
+                <td>{p.flags["utf_8_mode"] ? "yes" : "no"}</td>
+                <td>{p.flags["unicode_property"] ? "yes" : "no"}</td>
+                <td>{p["min_occurrences"]}</td>
+                <td>{p["max_occurrences"]}</td>
                 <td>{this.directions[p.direction]}</td>
                 {!isUpdate && <td><ButtonField variant="blue" small rounded name="edit"
                                                onClick={() => this.editPattern(p)}/></td>}
@@ -373,32 +371,32 @@ class RulesPane extends Component {
 
                                 <Col style={{"paddingTop": "6px"}}>
                                     <span>filters:</span>
-                                    <NumericField name="service_port" inline value={rule.filter.service_port}
-                                                  onChange={(v) => this.updateParam((r) => r.filter.service_port = v)}
+                                    <NumericField name="service_port" inline value={rule.filter["service_port"]}
+                                                  onChange={(v) => this.updateParam((r) => r.filter["service_port"] = v)}
                                                   min={0} max={65565} error={this.state.ruleServicePortError}
                                                   readonly={isUpdate}/>
-                                    <NumericField name="client_port" inline value={rule.filter.client_port}
-                                                  onChange={(v) => this.updateParam((r) => r.filter.client_port = v)}
+                                    <NumericField name="client_port" inline value={rule.filter["client_port"]}
+                                                  onChange={(v) => this.updateParam((r) => r.filter["client_port"] = v)}
                                                   min={0} max={65565} error={this.state.ruleClientPortError}
                                                   readonly={isUpdate}/>
-                                    <InputField name="client_address" value={rule.filter.client_address}
+                                    <InputField name="client_address" value={rule.filter["client_address"]}
                                                 error={this.state.ruleClientAddressError} readonly={isUpdate}
-                                                onChange={(v) => this.updateParam((r) => r.filter.client_address = v)}/>
+                                                onChange={(v) => this.updateParam((r) => r.filter["client_address"] = v)}/>
                                 </Col>
 
                                 <Col style={{"paddingTop": "11px"}}>
-                                    <NumericField name="min_duration" inline value={rule.filter.min_duration}
+                                    <NumericField name="min_duration" inline value={rule.filter["min_duration"]}
                                                   error={this.state.ruleDurationError} readonly={isUpdate}
-                                                  onChange={(v) => this.updateParam((r) => r.filter.min_duration = v)}/>
-                                    <NumericField name="max_duration" inline value={rule.filter.max_duration}
+                                                  onChange={(v) => this.updateParam((r) => r.filter["min_duration"] = v)}/>
+                                    <NumericField name="max_duration" inline value={rule.filter["max_duration"]}
                                                   error={this.state.ruleDurationError} readonly={isUpdate}
-                                                  onChange={(v) => this.updateParam((r) => r.filter.max_duration = v)}/>
-                                    <NumericField name="min_bytes" inline value={rule.filter.min_bytes}
+                                                  onChange={(v) => this.updateParam((r) => r.filter["max_duration"] = v)}/>
+                                    <NumericField name="min_bytes" inline value={rule.filter["min_bytes"]}
                                                   error={this.state.ruleBytesError} readonly={isUpdate}
-                                                  onChange={(v) => this.updateParam((r) => r.filter.min_bytes = v)}/>
-                                    <NumericField name="max_bytes" inline value={rule.filter.max_bytes}
+                                                  onChange={(v) => this.updateParam((r) => r.filter["min_bytes"] = v)}/>
+                                    <NumericField name="max_bytes" inline value={rule.filter["max_bytes"]}
                                                   error={this.state.ruleBytesError} readonly={isUpdate}
-                                                  onChange={(v) => this.updateParam((r) => r.filter.max_bytes = v)}/>
+                                                  onChange={(v) => this.updateParam((r) => r.filter["max_bytes"] = v)}/>
                                 </Col>
                             </Row>
                         </Container>
diff --git a/frontend/src/components/panels/SearchPane.js b/frontend/src/components/panels/SearchPane.js
index d36e85e..776ebd0 100644
--- a/frontend/src/components/panels/SearchPane.js
+++ b/frontend/src/components/panels/SearchPane.js
@@ -70,20 +70,20 @@ class SearchPane extends Component {
 
     loadSearches = () => {
         backend.get("/api/searches")
-            .then(res => this.setState({searches: res.json, searchesStatusCode: res.status}))
-            .catch(res => this.setState({searchesStatusCode: res.status, searchesResponse: JSON.stringify(res.json)}));
+            .then((res) => this.setState({searches: res.json, searchesStatusCode: res.status}))
+            .catch((res) => this.setState({searchesStatusCode: res.status, searchesResponse: JSON.stringify(res.json)}));
     };
 
     performSearch = () => {
         const options = this.state.currentSearchOptions;
         this.setState({loading: true});
         if (this.validateSearch(options)) {
-            backend.post("/api/searches/perform", options).then(res => {
+            backend.post("/api/searches/perform", options).then((res) => {
                 this.reset();
                 this.setState({searchStatusCode: res.status, loading: false});
                 this.loadSearches();
                 this.viewSearch(res.json.id);
-            }).catch(res => {
+            }).catch((res) => {
                 this.setState({
                     searchStatusCode: res.status, searchResponse: JSON.stringify(res.json),
                     loading: false
@@ -168,7 +168,7 @@ class SearchPane extends Component {
     render() {
         const options = this.state.currentSearchOptions;
 
-        let searches = this.state.searches.map(s =>
+        let searches = this.state.searches.map((s) =>
             <tr key={s.id} className="row-small row-clickable">
                 <td>{s.id.substring(0, 8)}</td>
                 <td>{this.extractPattern(s["search_options"])}</td>
diff --git a/frontend/src/components/panels/StreamsPane.js b/frontend/src/components/panels/StreamsPane.js
index 41ab33d..1819fec 100644
--- a/frontend/src/components/panels/StreamsPane.js
+++ b/frontend/src/components/panels/StreamsPane.js
@@ -18,7 +18,7 @@
 import DOMPurify from "dompurify";
 import React, {Component} from "react";
 import {Row} from "react-bootstrap";
-import ReactJson from "react-json-view"
+import ReactJson from "react-json-view";
 import backend from "../../backend";
 import log from "../../log";
 import {downloadBlob, getHeaderValue} from "../../utils";
@@ -72,7 +72,7 @@ class StreamsPane extends Component {
 
     setFormat = (format) => {
         if (this.validFormats.includes(format)) {
-            this.setState({format: format});
+            this.setState({format});
         }
     };
 
diff --git a/frontend/src/index.js b/frontend/src/index.js
index d00df88..62cb974 100644
--- a/frontend/src/index.js
+++ b/frontend/src/index.js
@@ -21,7 +21,6 @@ import ReactDOM from "react-dom";
 import App from "./components/App";
 import "./index.scss";
 import notifications from "./notifications";
-import * as serviceWorker from "./serviceWorker";
 
 notifications.createWebsocket();
 
@@ -31,5 +30,3 @@ ReactDOM.render(
     // </React.StrictMode>,
     document.getElementById("root")
 );
-
-serviceWorker.unregister();
diff --git a/frontend/src/index.scss b/frontend/src/index.scss
index ea360be..1378d81 100644
--- a/frontend/src/index.scss
+++ b/frontend/src/index.scss
@@ -82,9 +82,11 @@ a {
   0% {
     opacity: 1;
   }
+
   50% {
     opacity: 0.3;
   }
+
   100% {
     opacity: 1;
   }
diff --git a/frontend/src/log.js b/frontend/src/log.js
index 424e1b4..0afac47 100644
--- a/frontend/src/log.js
+++ b/frontend/src/log.js
@@ -16,9 +16,14 @@
  */
 
 const log = {
-    debug: (...obj) => console.info(...obj),
+    debug: (...obj) => isDevelopment() && console.info(...obj),
     info: (...obj) => console.info(...obj),
+    warn: (...obj) => console.warn(...obj),
     error: (...obj) => console.error(obj)
 };
 
+function isDevelopment() {
+    return !process.env.NODE_ENV || process.env.NODE_ENV === 'development';
+}
+
 export default log;
diff --git a/frontend/src/serviceWorker.js b/frontend/src/serviceWorker.js
deleted file mode 100644
index a1f0ba8..0000000
--- a/frontend/src/serviceWorker.js
+++ /dev/null
@@ -1,141 +0,0 @@
-// This optional code is used to register a service worker.
-// register() is not called by default.
-
-// This lets the app load faster on subsequent visits in production, and gives
-// it offline capabilities. However, it also means that developers (and users)
-// will only see deployed updates on subsequent visits to a page, after all the
-// existing tabs open on the page have been closed, since previously cached
-// resources are updated in the background.
-
-// To learn more about the benefits of this model and instructions on how to
-// opt-in, read https://bit.ly/CRA-PWA
-
-const isLocalhost = Boolean(
-    window.location.hostname === "localhost" ||
-    // [::1] is the IPv6 localhost address.
-    window.location.hostname === "[::1]" ||
-    // 127.0.0.0/8 are considered localhost for IPv4.
-    window.location.hostname.match(
-        /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
-    )
-);
-
-export function register(config) {
-    if (process.env.NODE_ENV === "production" && "serviceWorker" in navigator) {
-        // The URL constructor is available in all browsers that support SW.
-        const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href);
-        if (publicUrl.origin !== window.location.origin) {
-            // Our service worker won't work if PUBLIC_URL is on a different origin
-            // from what our page is served on. This might happen if a CDN is used to
-            // serve assets; see https://github.com/facebook/create-react-app/issues/2374
-            return;
-        }
-
-        window.addEventListener("load", () => {
-            const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
-
-            if (isLocalhost) {
-                // This is running on localhost. Let's check if a service worker still exists or not.
-                checkValidServiceWorker(swUrl, config);
-
-                // Add some additional logging to localhost, pointing developers to the
-                // service worker/PWA documentation.
-                navigator.serviceWorker.ready.then(() => {
-                    console.log(
-                        "This web app is being served cache-first by a service " +
-                        "worker. To learn more, visit https://bit.ly/CRA-PWA"
-                    );
-                });
-            } else {
-                // Is not localhost. Just register service worker
-                registerValidSW(swUrl, config);
-            }
-        });
-    }
-}
-
-function registerValidSW(swUrl, config) {
-    navigator.serviceWorker
-        .register(swUrl)
-        .then((registration) => {
-            registration.onupdatefound = () => {
-                const installingWorker = registration.installing;
-                if (installingWorker == null) {
-                    return;
-                }
-                installingWorker.onstatechange = () => {
-                    if (installingWorker.state === "installed") {
-                        if (navigator.serviceWorker.controller) {
-                            // At this point, the updated precached content has been fetched,
-                            // but the previous service worker will still serve the older
-                            // content until all client tabs are closed.
-                            console.log(
-                                "New content is available and will be used when all " +
-                                "tabs for this page are closed. See https://bit.ly/CRA-PWA."
-                            );
-
-                            // Execute callback
-                            if (config && config.onUpdate) {
-                                config.onUpdate(registration);
-                            }
-                        } else {
-                            // At this point, everything has been precached.
-                            // It's the perfect time to display a
-                            // "Content is cached for offline use." message.
-                            console.log("Content is cached for offline use.");
-
-                            // Execute callback
-                            if (config && config.onSuccess) {
-                                config.onSuccess(registration);
-                            }
-                        }
-                    }
-                };
-            };
-        })
-        .catch((error) => {
-            console.error("Error during service worker registration:", error);
-        });
-}
-
-function checkValidServiceWorker(swUrl, config) {
-    // Check if the service worker can be found. If it can't reload the page.
-    fetch(swUrl, {
-        headers: {"Service-Worker": "script"},
-    })
-        .then((response) => {
-            // Ensure service worker exists, and that we really are getting a JS file.
-            const contentType = response.headers.get("content-type");
-            if (
-                response.status === 404 ||
-                (contentType != null && contentType.indexOf("javascript") === -1)
-            ) {
-                // No service worker found. Probably a different app. Reload the page.
-                navigator.serviceWorker.ready.then((registration) => {
-                    registration.unregister().then(() => {
-                        window.location.reload();
-                    });
-                });
-            } else {
-                // Service worker found. Proceed as normal.
-                registerValidSW(swUrl, config);
-            }
-        })
-        .catch(() => {
-            console.log(
-                "No internet connection found. App is running in offline mode."
-            );
-        });
-}
-
-export function unregister() {
-    if ("serviceWorker" in navigator) {
-        navigator.serviceWorker.ready
-            .then((registration) => {
-                registration.unregister();
-            })
-            .catch((error) => {
-                console.error(error.message);
-            });
-    }
-}
diff --git a/frontend/src/setupTests.js b/frontend/src/setupTests.js
deleted file mode 100644
index 9b1d6d0..0000000
--- a/frontend/src/setupTests.js
+++ /dev/null
@@ -1,5 +0,0 @@
-// jest-dom adds custom jest matchers for asserting on DOM nodes.
-// allows you to do things like:
-// expect(element).toHaveTextContent(/react/i)
-// learn more: https://github.com/testing-library/jest-dom
-import "@testing-library/jest-dom/extend-expect";
\ No newline at end of file
diff --git a/frontend/src/utils.js b/frontend/src/utils.js
index 0f0927e..445e576 100644
--- a/frontend/src/utils.js
+++ b/frontend/src/utils.js
@@ -133,7 +133,7 @@ export function getHeaderValue(request, key) {
     if (request && request.headers) {
         return request.headers[Object.keys(request.headers).find((k) => k.toLowerCase() === key.toLowerCase())];
     }
-    return undefined;
+    return null;
 }
 
 export function downloadBlob(blob, fileName) {